[
  {
    "id": 400,
    "name": "GPU Compute Cost",
    "category": "AI / Machine Learning",
    "year_range": "2003-2025",
    "n_datapoints": 13,
    "learning_rate_pct": 88.5,
    "r_squared": 0.9911,
    "b_exponent": 3.1158,
    "b_stderr": 0.0889,
    "lr_ci_low": 86.8,
    "lr_ci_high": 89.9,
    "p_value": 0.0,
    "cost_label": "Cost (2024 $/GFLOPS)",
    "annual_pct_change": -25.5,
    "halving_time_yrs": 2.4,
    "latest_price_2025": "$12.6-17.8/FP16 TFLOPS (B200 GPU)",
    "latest_year": 2025,
    "cumulative_production_2025": "~4x10^21 FLOP/s cumulative NVIDIA compute stock",
    "primary_source": "Epoch AI / NVIDIA",
    "source_url": "https://epoch.ai/data-insights/b200-cost-breakdown",
    "data_status": "current_2025",
    "notes": "FP16 TFLOPS/$ improved ~4x from A100 to B200 (2020-2024). B200 mfg cost ~$6,400. H100 rental: $2-3/hr (down from $8+ in early 2023). Cumulative GPU stock doubles every 10 months.",
    "dataQuality": "estimated",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 24,
    "name": "Hard Disk Drive",
    "category": "Hardware",
    "year_range": "1988-2024",
    "n_datapoints": 37,
    "learning_rate_pct": 56.4,
    "r_squared": 0.9649,
    "b_exponent": 1.1975,
    "b_stderr": 0.0392,
    "lr_ci_low": 53.9,
    "lr_ci_high": 58.7,
    "p_value": 0.0,
    "cost_label": "Price (2005 USD/Megabyte)",
    "annual_pct_change": -35.31,
    "halving_time_yrs": 1.6,
    "latest_price_2025": "$10-15/TB (consumer HDD)",
    "latest_year": 2025,
    "cumulative_production_2025": "123.9M units shipped (2024); 1,337 EB capacity; ~278M units projected 2025",
    "primary_source": "Backblaze / DiskPrices.com",
    "source_url": "https://www.backblaze.com/blog/hard-drive-cost-per-gigabyte/",
    "data_status": "current_2025",
    "notes": "$10/TB milestone achieved on 24TB drives. However, 46% average price surge since Sep 2025 due to AI datacenter demand. HAMR drives: 8M units in 2025.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 108,
    "name": "Aniline",
    "category": "Chemicals",
    "year_range": "1961-1972",
    "n_datapoints": 12,
    "learning_rate_pct": 49.5,
    "r_squared": 0.8994,
    "b_exponent": 0.985,
    "b_stderr": 0.1042,
    "lr_ci_low": 40.7,
    "lr_ci_high": 57.0,
    "p_value": 3e-06,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -5.62,
    "halving_time_yrs": 12.0,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 182,
    "name": "Photovoltaics Electricity",
    "category": "Energy",
    "year_range": "1980-2025",
    "n_datapoints": 42,
    "learning_rate_pct": 49.1,
    "r_squared": 0.6634,
    "b_exponent": 0.9733,
    "b_stderr": 0.1853,
    "lr_ci_low": 32.9,
    "lr_ci_high": 61.3,
    "p_value": 0.000122,
    "cost_label": "Cost (2005 US cents/KWH)",
    "annual_pct_change": -8.76,
    "halving_time_yrs": 7.6,
    "latest_price_2025": "$0.043/kWh (global LCOE)",
    "latest_year": 2024,
    "cumulative_production_2025": "2,250 GW cumulative installed",
    "primary_source": "IRENA RPGC 2024",
    "source_url": "https://www.pv-tech.org/irena-global-solar-pv-lcoe-increases-by-0-6-in-2024-to-us0-043-kwh/",
    "data_status": "current_2025",
    "notes": "LCOE increased 0.6% YoY in 2024 despite continued module price declines. System costs vary by region.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 132,
    "name": "PhthalicAnhydride",
    "category": "Chemicals",
    "year_range": "1955-1972",
    "n_datapoints": 18,
    "learning_rate_pct": 45.2,
    "r_squared": 0.8278,
    "b_exponent": 0.8676,
    "b_stderr": 0.0989,
    "lr_ci_low": 36.6,
    "lr_ci_high": 52.6,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -6.86,
    "halving_time_yrs": 9.7,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 106,
    "name": "Ammonia",
    "category": "Chemicals",
    "year_range": "1960-1972",
    "n_datapoints": 13,
    "learning_rate_pct": 43.9,
    "r_squared": 0.8747,
    "b_exponent": 0.8348,
    "b_stderr": 0.0953,
    "lr_ci_low": 35.2,
    "lr_ci_high": 51.5,
    "p_value": 3e-06,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -8.62,
    "halving_time_yrs": 7.7,
    "latest_price_2025": "$289-426/MT (regional range)",
    "latest_year": 2025,
    "cumulative_production_2025": "~150-198 Mt annual production (2024-2025)",
    "primary_source": "ChemAnalyst",
    "source_url": "https://www.chemanalyst.com/Pricing-data/ammonia-37",
    "data_status": "needs_update",
    "notes": "Historical dataset ends 1972. Modern ammonia at ~$290-426/MT. Price tightly coupled to natural gas feedstock.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 131,
    "name": "Phenol",
    "category": "Chemicals",
    "year_range": "1959-1972",
    "n_datapoints": 14,
    "learning_rate_pct": 43.8,
    "r_squared": 0.964,
    "b_exponent": 0.8304,
    "b_stderr": 0.0463,
    "lr_ci_low": 39.7,
    "lr_ci_high": 47.6,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -7.83,
    "halving_time_yrs": 8.5,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 23,
    "name": "Transistor",
    "category": "Hardware",
    "year_range": "1968-2025",
    "n_datapoints": 58,
    "learning_rate_pct": 42.8,
    "r_squared": 0.9973,
    "b_exponent": 0.8053,
    "b_stderr": 0.0071,
    "lr_ci_low": 42.2,
    "lr_ci_high": 43.3,
    "p_value": 0.0,
    "cost_label": "Price (2005 USD)",
    "annual_pct_change": -34.46,
    "halving_time_yrs": 1.6,
    "latest_price_2025": "~$0.02 per million transistors at 3nm",
    "latest_year": 2025,
    "cumulative_production_2025": "13,328 MSI silicon wafers projected (2025); 42M+ 300mm wafers/quarter",
    "primary_source": "SEMI / EE Times",
    "source_url": "https://www.eetimes.com/tsmc-price-hikes-end-the-era-of-cheap-transistors/",
    "data_status": "current_2025",
    "notes": "HISTORIC TREND BREAK: Cost per transistor RISING at leading edge. Cost scaling stalled at 28nm (~2012). TSMC 3nm wafers ~$20K; 2nm >$30K. Moore's Law as economic law may be over at leading edge.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 100,
    "name": "Benzene",
    "category": "Chemicals",
    "year_range": "1952-1968",
    "n_datapoints": 17,
    "learning_rate_pct": 40.8,
    "r_squared": 0.9129,
    "b_exponent": 0.7569,
    "b_stderr": 0.0625,
    "lr_ci_low": 35.1,
    "lr_ci_high": 46.1,
    "p_value": 0.0,
    "cost_label": "Price (1958 USD)",
    "annual_pct_change": -5.83,
    "halving_time_yrs": 11.5,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 142,
    "name": "Trichloroethane",
    "category": "Chemicals",
    "year_range": "1966-1972",
    "n_datapoints": 7,
    "learning_rate_pct": 39.4,
    "r_squared": 0.898,
    "b_exponent": 0.7233,
    "b_stderr": 0.109,
    "lr_ci_low": 26.4,
    "lr_ci_high": 50.1,
    "p_value": 0.001171,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -6.56,
    "halving_time_yrs": 10.2,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "historical",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 25,
    "name": "DRAM",
    "category": "Hardware",
    "year_range": "1971-2025",
    "n_datapoints": 55,
    "learning_rate_pct": 37.9,
    "r_squared": 0.9872,
    "b_exponent": 0.6881,
    "b_stderr": 0.0109,
    "lr_ci_low": 37.0,
    "lr_ci_high": 38.9,
    "p_value": 0.0,
    "cost_label": "Price (2005 USD/thousand bits)",
    "annual_pct_change": -30.05,
    "halving_time_yrs": 1.9,
    "latest_price_2025": "$0.50-0.81/GB (DDR5 spot)",
    "latest_year": 2025,
    "cumulative_production_2025": "160B+ gigabits shipped (2024); $92.4B DRAM market revenue (2024)",
    "primary_source": "TrendForce",
    "source_url": "https://www.trendforce.com/price/dram/dram_spot",
    "data_status": "current_2025",
    "notes": "Price REVERSAL: after historic lows in 2023, DRAM prices surged 60%+ in 2025 driven by AI/HBM demand. DDR5 contract prices up 18-23% QoQ in Q4 2025.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 122,
    "name": "EthyleneGlycol",
    "category": "Chemicals",
    "year_range": "1960-1972",
    "n_datapoints": 13,
    "learning_rate_pct": 37.9,
    "r_squared": 0.9556,
    "b_exponent": 0.6863,
    "b_stderr": 0.0446,
    "lr_ci_low": 33.5,
    "lr_ci_high": 41.9,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -6.4,
    "halving_time_yrs": 10.5,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 128,
    "name": "Methanol",
    "category": "Chemicals",
    "year_range": "1957-1972",
    "n_datapoints": 16,
    "learning_rate_pct": 37.6,
    "r_squared": 0.7482,
    "b_exponent": 0.6793,
    "b_stderr": 0.1053,
    "lr_ci_low": 27.0,
    "lr_ci_high": 46.6,
    "p_value": 1.5e-05,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -5.65,
    "halving_time_yrs": 11.9,
    "latest_price_2025": "~$300-400/MT (methanol, 2025)",
    "latest_year": 2025,
    "cumulative_production_2025": "~100+ Mt annual global methanol",
    "primary_source": "ChemAnalyst",
    "source_url": "https://www.chemanalyst.com/Pricing-data/ammonia-37",
    "data_status": "needs_update",
    "notes": "Methanol. Historical dataset ends 1972. Price tied to natural gas feedstock.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 141,
    "name": "TitaniumDioxide",
    "category": "Chemicals",
    "year_range": "1964-1972",
    "n_datapoints": 9,
    "learning_rate_pct": 36.0,
    "r_squared": 0.8715,
    "b_exponent": 0.6449,
    "b_stderr": 0.0936,
    "lr_ci_low": 25.4,
    "lr_ci_high": 45.1,
    "p_value": 0.000234,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -3.86,
    "halving_time_yrs": 17.6,
    "latest_price_2025": "$2,260/MT (US); $1,900/MT (NE Asia)",
    "latest_year": 2025,
    "cumulative_production_2025": "~7.4-7.7 Mt annual (2024)",
    "primary_source": "ChemAnalyst",
    "source_url": "https://www.chemanalyst.com/Pricing-data/titanium-dioxide-52",
    "data_status": "needs_update",
    "notes": "Historical dataset ends 1972. Modern TiO2 at ~$1,900-2,260/MT.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 145,
    "name": "VinylChloride",
    "category": "Chemicals",
    "year_range": "1962-1972",
    "n_datapoints": 11,
    "learning_rate_pct": 35.9,
    "r_squared": 0.9825,
    "b_exponent": 0.6426,
    "b_stderr": 0.0286,
    "lr_ci_low": 33.0,
    "lr_ci_high": 38.8,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -8.57,
    "halving_time_yrs": 7.7,
    "latest_price_2025": "$643/MT (US PVC); $1,092/MT (Germany)",
    "latest_year": 2025,
    "cumulative_production_2025": "~40-57 Mt annual PVC (2024)",
    "primary_source": "ChemAnalyst / IndexBox",
    "source_url": "https://www.chemanalyst.com/Pricing-data/poly-vinyl-chloride-5",
    "data_status": "needs_update",
    "notes": "VinylChloride (monomer) / PVC. Historical dataset ends 1972.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 123,
    "name": "Formaldehyde",
    "category": "Chemicals",
    "year_range": "1962-1972",
    "n_datapoints": 11,
    "learning_rate_pct": 35.0,
    "r_squared": 0.9203,
    "b_exponent": 0.6215,
    "b_stderr": 0.0609,
    "lr_ci_low": 28.5,
    "lr_ci_high": 40.9,
    "p_value": 3e-06,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -5.77,
    "halving_time_yrs": 11.7,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 138,
    "name": "SodiumHydrosulfite",
    "category": "Chemicals",
    "year_range": "1964-1972",
    "n_datapoints": 9,
    "learning_rate_pct": 35.0,
    "r_squared": 0.5822,
    "b_exponent": 0.6224,
    "b_stderr": 0.1993,
    "lr_ci_low": 9.9,
    "lr_ci_high": 53.1,
    "p_value": 0.016767,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -2.17,
    "halving_time_yrs": 31.6,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 125,
    "name": "IsopropylAlcohol",
    "category": "Chemicals",
    "year_range": "1964-1972",
    "n_datapoints": 9,
    "learning_rate_pct": 34.9,
    "r_squared": 0.9525,
    "b_exponent": 0.6199,
    "b_stderr": 0.0523,
    "lr_ci_low": 29.1,
    "lr_ci_high": 40.3,
    "p_value": 7e-06,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -3.8,
    "halving_time_yrs": 17.9,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 144,
    "name": "VinylAcetate",
    "category": "Chemicals",
    "year_range": "1960-1972",
    "n_datapoints": 13,
    "learning_rate_pct": 33.8,
    "r_squared": 0.9267,
    "b_exponent": 0.5955,
    "b_stderr": 0.0505,
    "lr_ci_low": 28.5,
    "lr_ci_high": 38.7,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -7.3,
    "halving_time_yrs": 9.1,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 140,
    "name": "Styrene",
    "category": "Chemicals",
    "year_range": "1958-1972",
    "n_datapoints": 15,
    "learning_rate_pct": 33.0,
    "r_squared": 0.979,
    "b_exponent": 0.5767,
    "b_stderr": 0.0234,
    "lr_ci_low": 30.6,
    "lr_ci_high": 35.3,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -6.71,
    "halving_time_yrs": 10.0,
    "latest_price_2025": "~$1,200-1,400/MT (styrene monomer, 2025 estimate)",
    "latest_year": 2025,
    "cumulative_production_2025": "~35 Mt annual styrene (2024 est.)",
    "primary_source": "ChemAnalyst",
    "source_url": "https://www.chemanalyst.com/Pricing-data/polystyrene-ps-11",
    "data_status": "needs_update",
    "notes": "Styrene monomer. Historical dataset ends 1972. Feedstock for polystyrene.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 119,
    "name": "AcrylicFiber",
    "category": "Chemicals",
    "year_range": "1960-1972",
    "n_datapoints": 13,
    "learning_rate_pct": 32.1,
    "r_squared": 0.9696,
    "b_exponent": 0.5582,
    "b_stderr": 0.0298,
    "lr_ci_low": 28.9,
    "lr_ci_high": 35.1,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -9.74,
    "halving_time_yrs": 6.8,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 65,
    "name": "Automotive (US)",
    "category": "Automotive",
    "year_range": "1970-2024",
    "n_datapoints": 43,
    "learning_rate_pct": 31.7,
    "r_squared": 0.9938,
    "b_exponent": 0.5504,
    "b_stderr": 0.0095,
    "lr_ci_low": 30.8,
    "lr_ci_high": 32.6,
    "p_value": 0.0,
    "cost_label": "Fuel consumption (Gallons/Mile)",
    "annual_pct_change": -12.64,
    "halving_time_yrs": 5.1,
    "latest_price_2025": "~24.4 MPG US fleet average (2024 MY); ~0.041 gal/mile",
    "latest_year": 2024,
    "cumulative_production_2025": "~290M registered vehicles in US; ~1.4B globally",
    "primary_source": "EPA / NHTSA",
    "source_url": "https://www.epa.gov/automotive-trends",
    "data_status": "current_2025",
    "notes": "Automotive fuel efficiency (US). Steady improvement driven by CAFE standards and EV adoption.",
    "dataQuality": "unit_issue",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 96,
    "name": "Free Standing Gas Range",
    "category": "Consumer Goods",
    "year_range": "1946-1967",
    "n_datapoints": 22,
    "learning_rate_pct": 30.3,
    "r_squared": 0.8969,
    "b_exponent": 0.5216,
    "b_stderr": 0.0406,
    "lr_ci_low": 26.1,
    "lr_ci_high": 34.3,
    "p_value": 0.0,
    "cost_label": "Price (1958 USD)",
    "annual_pct_change": -1.77,
    "halving_time_yrs": 38.8,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 118,
    "name": "Ethanolamine",
    "category": "Chemicals",
    "year_range": "1955-1972",
    "n_datapoints": 18,
    "learning_rate_pct": 29.8,
    "r_squared": 0.8935,
    "b_exponent": 0.5103,
    "b_stderr": 0.044,
    "lr_ci_low": 25.1,
    "lr_ci_high": 34.2,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -5.97,
    "halving_time_yrs": 11.3,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 34,
    "name": "Shotgun Sanger DNA Sequencing",
    "category": "Biotechnology",
    "year_range": "2001-2025",
    "n_datapoints": 42,
    "learning_rate_pct": 29.2,
    "r_squared": 0.8725,
    "b_exponent": 0.4987,
    "b_stderr": 0.0397,
    "lr_ci_low": 25.1,
    "lr_ci_high": 33.1,
    "p_value": 0.0,
    "cost_label": "Cost (USD/Kilobase)",
    "annual_pct_change": -53.14,
    "halving_time_yrs": 0.9,
    "latest_price_2025": "$200/genome (Illumina NovaSeq X); $100/genome (Ultima Genomics)",
    "latest_year": 2025,
    "cumulative_production_2025": "~9.4M whole genomes sequenced annually; ~2M+ cumulative",
    "primary_source": "NHGRI / Illumina / Ultima Genomics",
    "source_url": "https://www.genome.gov/about-genomics/fact-sheets/DNA-Sequencing-Costs-Data",
    "data_status": "current_2025",
    "notes": "Sub-$200 genome routine at scale. Sub-$100 achievable on Ultima. ~1-billion-fold reduction since 2001 ($95M to $100).",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 112,
    "name": "Caprolactam",
    "category": "Chemicals",
    "year_range": "1962-1972",
    "n_datapoints": 11,
    "learning_rate_pct": 29.0,
    "r_squared": 0.9648,
    "b_exponent": 0.4949,
    "b_stderr": 0.0315,
    "lr_ci_low": 25.4,
    "lr_ci_high": 32.5,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -10.93,
    "halving_time_yrs": 6.0,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 121,
    "name": "Ethylene 2",
    "category": "Chemicals",
    "year_range": "1960-1972",
    "n_datapoints": 13,
    "learning_rate_pct": 28.3,
    "r_squared": 0.9443,
    "b_exponent": 0.4794,
    "b_stderr": 0.0351,
    "lr_ci_low": 24.3,
    "lr_ci_high": 32.0,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -6.29,
    "halving_time_yrs": 10.7,
    "latest_price_2025": "~$800-1,000/MT (ethylene)",
    "latest_year": 2025,
    "cumulative_production_2025": "~200+ Mt annual global ethylene",
    "primary_source": "ChemAnalyst",
    "source_url": "https://www.chemanalyst.com/Pricing-data/polystyrene-ps-11",
    "data_status": "needs_update",
    "notes": "Ethylene 2. Same commodity, different dataset.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 143,
    "name": "Urea",
    "category": "Chemicals",
    "year_range": "1961-1972",
    "n_datapoints": 12,
    "learning_rate_pct": 28.2,
    "r_squared": 0.8846,
    "b_exponent": 0.4789,
    "b_stderr": 0.0547,
    "lr_ci_low": 21.9,
    "lr_ci_high": 34.1,
    "p_value": 5e-06,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -7.01,
    "halving_time_yrs": 9.5,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 133,
    "name": "PolyesterFiber",
    "category": "Chemicals",
    "year_range": "1960-1972",
    "n_datapoints": 13,
    "learning_rate_pct": 28.1,
    "r_squared": 0.9717,
    "b_exponent": 0.4767,
    "b_stderr": 0.0245,
    "lr_ci_low": 25.4,
    "lr_ci_high": 30.8,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -12.62,
    "halving_time_yrs": 5.1,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 26,
    "name": "Milk (US)",
    "category": "Agriculture",
    "year_range": "1930-2024",
    "n_datapoints": 95,
    "learning_rate_pct": 28.0,
    "r_squared": 0.7822,
    "b_exponent": 0.4733,
    "b_stderr": 0.0287,
    "lr_ci_low": 25.1,
    "lr_ci_high": 30.8,
    "p_value": 0.0,
    "cost_label": "Cost (Heads/Mil. lbs)",
    "annual_pct_change": -2.12,
    "halving_time_yrs": 32.4,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 135,
    "name": "PolyethyleneLD",
    "category": "Chemicals",
    "year_range": "1958-1972",
    "n_datapoints": 15,
    "learning_rate_pct": 27.8,
    "r_squared": 0.9765,
    "b_exponent": 0.4706,
    "b_stderr": 0.0203,
    "lr_ci_low": 25.6,
    "lr_ci_high": 30.0,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -8.48,
    "halving_time_yrs": 7.8,
    "latest_price_2025": "$1,280-1,320/MT (LDPE US/China)",
    "latest_year": 2025,
    "cumulative_production_2025": "~22.6-25 Mt annual (2024); ~8.3 Bt cumulative plastics total",
    "primary_source": "Intratec / ChemAnalyst",
    "source_url": "https://www.intratec.us/solutions/primary-commodity-prices/commodity/ldpe-prices",
    "data_status": "needs_update",
    "notes": "PolyethyleneLD. Historical dataset ends ~1972. Modern LDPE at ~$1,280-1,320/MT.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 255,
    "name": "Fotovoltaica",
    "category": "Energy",
    "year_range": "1957-2007",
    "n_datapoints": 51,
    "learning_rate_pct": 27.7,
    "r_squared": 0.9525,
    "b_exponent": 0.4673,
    "b_stderr": 0.0151,
    "lr_ci_low": 26.1,
    "lr_ci_high": 29.2,
    "p_value": 0.0,
    "cost_label": "Costo (2005 USD/kWh)",
    "annual_pct_change": -13.61,
    "halving_time_yrs": 4.7,
    "latest_price_2025": "$0.043/kWh (global LCOE)",
    "latest_year": 2024,
    "cumulative_production_2025": "2,250 GW cumulative installed",
    "primary_source": "IRENA RPGC 2024",
    "source_url": "https://www.irena.org/Publications/2025/Jun/Renewable-Power-Generation-Costs-in-2024",
    "data_status": "current_2025",
    "notes": "Fotovoltaica dataset - same underlying PV data.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 136,
    "name": "Sodium",
    "category": "Chemicals",
    "year_range": "1957-1972",
    "n_datapoints": 16,
    "learning_rate_pct": 27.6,
    "r_squared": 0.9088,
    "b_exponent": 0.4659,
    "b_stderr": 0.0395,
    "lr_ci_low": 23.2,
    "lr_ci_high": 31.7,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -1.52,
    "halving_time_yrs": 45.2,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 139,
    "name": "Sorbitol",
    "category": "Chemicals",
    "year_range": "1965-1972",
    "n_datapoints": 8,
    "learning_rate_pct": 27.6,
    "r_squared": 0.7967,
    "b_exponent": 0.4649,
    "b_stderr": 0.0959,
    "lr_ci_low": 14.8,
    "lr_ci_high": 38.4,
    "p_value": 0.002857,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -2.83,
    "halving_time_yrs": 24.2,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 134,
    "name": "PolyethyleneHD",
    "category": "Chemicals",
    "year_range": "1958-1972",
    "n_datapoints": 15,
    "learning_rate_pct": 27.3,
    "r_squared": 0.9808,
    "b_exponent": 0.4594,
    "b_stderr": 0.0178,
    "lr_ci_low": 25.3,
    "lr_ci_high": 29.2,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -9.31,
    "halving_time_yrs": 7.1,
    "latest_price_2025": "$1,170/MT (US HDPE); $1,291/MT (UK)",
    "latest_year": 2025,
    "cumulative_production_2025": "~52 Mt annual HDPE (2024); part of 413.8 Mt total plastics",
    "primary_source": "ChemAnalyst / IMARC",
    "source_url": "https://www.chemanalyst.com/Pricing-data/polystyrene-ps-11",
    "data_status": "needs_update",
    "notes": "PolyethyleneHD. Historical dataset ends ~1972. Total cumulative plastics ~8.3 Bt.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 115,
    "name": "CarbonDisulfide",
    "category": "Chemicals",
    "year_range": "1963-1972",
    "n_datapoints": 10,
    "learning_rate_pct": 27.1,
    "r_squared": 0.5665,
    "b_exponent": 0.4566,
    "b_stderr": 0.1412,
    "lr_ci_low": 8.7,
    "lr_ci_high": 41.9,
    "p_value": 0.012,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -2.12,
    "halving_time_yrs": 32.3,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 105,
    "name": "Aluminum",
    "category": "Chemicals",
    "year_range": "1956-2025",
    "n_datapoints": 70,
    "learning_rate_pct": 26.8,
    "r_squared": 0.2446,
    "b_exponent": 0.45,
    "b_stderr": 0.0959,
    "lr_ci_low": 16.4,
    "lr_ci_high": 35.9,
    "p_value": 1.4e-05,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -2.03,
    "halving_time_yrs": 33.8,
    "latest_price_2025": "$2,400-3,270/MT (LME range in 2025)",
    "latest_year": 2025,
    "cumulative_production_2025": "72.3 Mt (2024); 74.5 Mt forecast (2025); ~1.5 Bt cumulative est.",
    "primary_source": "TradingEconomics / AlCircle",
    "source_url": "https://tradingeconomics.com/commodity/aluminum",
    "data_status": "needs_update",
    "notes": "Historical dataset from BCG chemicals study. Modern aluminum prices driven by China's 45 Mt production cap.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 127,
    "name": "MaleicAnhydride",
    "category": "Chemicals",
    "year_range": "1959-1972",
    "n_datapoints": 14,
    "learning_rate_pct": 25.3,
    "r_squared": 0.6349,
    "b_exponent": 0.4216,
    "b_stderr": 0.0923,
    "lr_ci_low": 14.2,
    "lr_ci_high": 35.1,
    "p_value": 0.000645,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -5.28,
    "halving_time_yrs": 12.8,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 130,
    "name": "Pentaerythritol",
    "category": "Chemicals",
    "year_range": "1952-1972",
    "n_datapoints": 21,
    "learning_rate_pct": 25.2,
    "r_squared": 0.8902,
    "b_exponent": 0.4182,
    "b_stderr": 0.0337,
    "lr_ci_low": 21.4,
    "lr_ci_high": 28.7,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -4.11,
    "halving_time_yrs": 16.5,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 113,
    "name": "Acrylonitrile",
    "category": "Chemicals",
    "year_range": "1959-1972",
    "n_datapoints": 14,
    "learning_rate_pct": 24.9,
    "r_squared": 0.9122,
    "b_exponent": 0.4141,
    "b_stderr": 0.0371,
    "lr_ci_low": 20.6,
    "lr_ci_high": 29.0,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -7.31,
    "halving_time_yrs": 9.1,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 148,
    "name": "Polyvinylchloride",
    "category": "Chemicals",
    "year_range": "1946-1968",
    "n_datapoints": 23,
    "learning_rate_pct": 24.4,
    "r_squared": 0.881,
    "b_exponent": 0.404,
    "b_stderr": 0.0332,
    "lr_ci_low": 20.7,
    "lr_ci_high": 28.0,
    "p_value": 0.0,
    "cost_label": "Price per Pound (1958 USD)",
    "annual_pct_change": -7.05,
    "halving_time_yrs": 9.5,
    "latest_price_2025": "$643/MT (US PVC); $1,092/MT (Germany)",
    "latest_year": 2025,
    "cumulative_production_2025": "~40-57 Mt annual PVC (2024)",
    "primary_source": "ChemAnalyst",
    "source_url": "https://www.chemanalyst.com/Pricing-data/poly-vinyl-chloride-5",
    "data_status": "needs_update",
    "notes": "Polyvinylchloride. Same commodity as VinylChloride id 145.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 101,
    "name": "Paraxylene",
    "category": "Chemicals",
    "year_range": "1957-1968",
    "n_datapoints": 12,
    "learning_rate_pct": 24.3,
    "r_squared": 0.9511,
    "b_exponent": 0.4013,
    "b_stderr": 0.0303,
    "lr_ci_low": 20.6,
    "lr_ci_high": 27.8,
    "p_value": 0.0,
    "cost_label": "Price (1958 USD)",
    "annual_pct_change": -9.45,
    "halving_time_yrs": 7.0,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 111,
    "name": "BisphenolA",
    "category": "Chemicals",
    "year_range": "1959-1972",
    "n_datapoints": 14,
    "learning_rate_pct": 24.3,
    "r_squared": 0.958,
    "b_exponent": 0.4011,
    "b_stderr": 0.0242,
    "lr_ci_low": 21.4,
    "lr_ci_high": 27.0,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -5.96,
    "halving_time_yrs": 11.3,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 158,
    "name": "Photovoltaics 4",
    "category": "Energy",
    "year_range": "1975-2025",
    "n_datapoints": 51,
    "learning_rate_pct": 23.8,
    "r_squared": 0.9529,
    "b_exponent": 0.3927,
    "b_stderr": 0.0125,
    "lr_ci_low": 22.5,
    "lr_ci_high": 25.1,
    "p_value": 0.0,
    "cost_label": "Cost (2004 USD/Watt)",
    "annual_pct_change": -10.7,
    "halving_time_yrs": 6.1,
    "latest_price_2025": "$0.096/W (module); $691/kW (system, utility-scale)",
    "latest_year": 2024,
    "cumulative_production_2025": "2,250 GW cumulative installed",
    "primary_source": "IRENA RPGC 2024",
    "source_url": "https://www.irena.org/Publications/2025/Jun/Renewable-Power-Generation-Costs-in-2024",
    "data_status": "current_2025",
    "notes": "IRENA reports global utility-scale system cost $691/kW and LCOE $0.043/kWh in 2024.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 137,
    "name": "SodiumChlorate",
    "category": "Chemicals",
    "year_range": "1958-1972",
    "n_datapoints": 15,
    "learning_rate_pct": 23.7,
    "r_squared": 0.8945,
    "b_exponent": 0.3897,
    "b_stderr": 0.0371,
    "lr_ci_low": 19.3,
    "lr_ci_high": 27.8,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -3.92,
    "halving_time_yrs": 17.3,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 116,
    "name": "Cyclohexane",
    "category": "Chemicals",
    "year_range": "1956-1972",
    "n_datapoints": 17,
    "learning_rate_pct": 22.8,
    "r_squared": 0.9613,
    "b_exponent": 0.3731,
    "b_stderr": 0.0193,
    "lr_ci_low": 20.6,
    "lr_ci_high": 25.0,
    "p_value": 0.0,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -5.1,
    "halving_time_yrs": 13.2,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 102,
    "name": "Low Density Polyethylene",
    "category": "Chemicals",
    "year_range": "1952-1968",
    "n_datapoints": 17,
    "learning_rate_pct": 21.5,
    "r_squared": 0.9418,
    "b_exponent": 0.3486,
    "b_stderr": 0.0232,
    "lr_ci_low": 18.7,
    "lr_ci_high": 24.1,
    "p_value": 0.0,
    "cost_label": "Price per Pound (1958 USD)",
    "annual_pct_change": -9.7,
    "halving_time_yrs": 6.8,
    "latest_price_2025": "$1,280-1,320/MT (LDPE)",
    "latest_year": 2025,
    "cumulative_production_2025": "~22.6-25 Mt annual LDPE (2024)",
    "primary_source": "ChemAnalyst / Intratec",
    "source_url": "https://www.chemanalyst.com/industry-report/low-density-polyethylene-market-2955",
    "data_status": "needs_update",
    "notes": "Low Density Polyethylene. Same commodity as PolyethyleneLD (id 135).",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 176,
    "name": "Geothermal Electricity",
    "category": "Energy",
    "year_range": "1980-2025",
    "n_datapoints": 46,
    "learning_rate_pct": 21.2,
    "r_squared": 0.9003,
    "b_exponent": 0.3434,
    "b_stderr": 0.0172,
    "lr_ci_low": 19.3,
    "lr_ci_high": 23.1,
    "p_value": 0.0,
    "cost_label": "Cost (2005 US cents/KWH)",
    "annual_pct_change": -2.26,
    "halving_time_yrs": 30.3,
    "latest_price_2025": "$0.060/kWh (global LCOE)",
    "latest_year": 2024,
    "cumulative_production_2025": "~16 GW global geothermal capacity",
    "primary_source": "IRENA RPGC 2024",
    "source_url": "https://www.thinkgeoenergy.com/irena-report-highlights-16-decrease-in-geothermal-power-lcoe-in-2024/",
    "data_status": "current_2025",
    "notes": "LCOE dropped 16% in 2024 (from $0.072 to $0.060/kWh). Capacity factor 88%. Heavily influenced by Tauhara II project.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 256,
    "name": "Photovoltaics 2",
    "category": "Energy",
    "year_range": "1976-2025",
    "n_datapoints": 50,
    "learning_rate_pct": 21.0,
    "r_squared": 0.9336,
    "b_exponent": 0.3404,
    "b_stderr": 0.0132,
    "lr_ci_low": 19.5,
    "lr_ci_high": 22.5,
    "p_value": 0.0,
    "cost_label": "Cost (2005 USD/kWh)",
    "annual_pct_change": -10.17,
    "halving_time_yrs": 6.5,
    "latest_price_2025": "$0.043/kWh (LCOE); $0.096/W (module)",
    "latest_year": 2024,
    "cumulative_production_2025": "2,250 GW cumulative installed",
    "primary_source": "IRENA / BloombergNEF",
    "source_url": "https://ourworldindata.org/grapher/solar-pv-prices",
    "data_status": "current_2025",
    "notes": "PV electricity production & cost dataset. 2024 data confirms continued learning curve trajectory.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 154,
    "name": "Electric Power",
    "category": "Energy",
    "year_range": "1939-1968",
    "n_datapoints": 30,
    "learning_rate_pct": 20.8,
    "r_squared": 0.9482,
    "b_exponent": 0.3362,
    "b_stderr": 0.0151,
    "lr_ci_low": 19.1,
    "lr_ci_high": 22.5,
    "p_value": 0.0,
    "cost_label": "Price per KWH (1958 USD)",
    "annual_pct_change": -3.74,
    "halving_time_yrs": 18.2,
    "latest_price_2025": "US average retail: ~$0.13/kWh (2024)",
    "latest_year": 2024,
    "cumulative_production_2025": "~29,000 TWh global electricity generation (2024)",
    "primary_source": "EIA",
    "source_url": "https://www.eia.gov/electricity/monthly/",
    "data_status": "current_2025",
    "notes": "Electric Power aggregate. Global generation continues to grow ~2-3% annually.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 14,
    "name": "Photovoltaics",
    "category": "Energy",
    "year_range": "1975-2025",
    "n_datapoints": 51,
    "learning_rate_pct": 20.5,
    "r_squared": 0.9265,
    "b_exponent": 0.3309,
    "b_stderr": 0.0135,
    "lr_ci_low": 19.0,
    "lr_ci_high": 22.0,
    "p_value": 0.0,
    "cost_label": "Price (USD/Wp)",
    "annual_pct_change": -8.72,
    "halving_time_yrs": 7.6,
    "latest_price_2025": "$0.096/W (module spot price)",
    "latest_year": 2024,
    "cumulative_production_2025": "2,250 GW cumulative installed capacity",
    "primary_source": "BloombergNEF",
    "source_url": "https://about.bnef.com/insights/clean-energy/3q-2024-global-pv-market-outlook/",
    "data_status": "current_2025",
    "notes": "Module spot price Q3 2024; annual additions 554-602 GW in 2024. Learning rate ~20% per doubling (Swanson's Law).",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 30,
    "name": "Capillary DNA Sequencing",
    "category": "Biotechnology",
    "year_range": "2000-2025",
    "n_datapoints": 26,
    "learning_rate_pct": 20.0,
    "r_squared": 0.9551,
    "b_exponent": 0.3213,
    "b_stderr": 0.0285,
    "lr_ci_low": 16.0,
    "lr_ci_high": 23.7,
    "p_value": 2.9e-05,
    "cost_label": "Cost (USD/Kilobase)",
    "annual_pct_change": -49.69,
    "halving_time_yrs": 1.0,
    "latest_price_2025": "$200/genome (Illumina NovaSeq X Plus)",
    "latest_year": 2025,
    "cumulative_production_2025": "~9.4M whole genomes sequenced annually",
    "primary_source": "NHGRI / Illumina",
    "source_url": "https://www.genome.gov/about-genomics/fact-sheets/DNA-Sequencing-Costs-Data",
    "data_status": "current_2025",
    "notes": "Capillary sequencing superseded by NGS. NHGRI stopped cost tracking after 2022. Current costs represent NGS continuation.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 155,
    "name": "Refined Cane Sugar",
    "category": "Consumer Goods",
    "year_range": "1935-1968",
    "n_datapoints": 34,
    "learning_rate_pct": 20.0,
    "r_squared": 0.4542,
    "b_exponent": 0.3222,
    "b_stderr": 0.0634,
    "lr_ci_low": 12.5,
    "lr_ci_high": 26.9,
    "p_value": 1.7e-05,
    "cost_label": "Price (1958 USD)",
    "annual_pct_change": -0.52,
    "halving_time_yrs": 133.8,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 6,
    "name": "Laser Diode",
    "category": "Hardware",
    "year_range": "1982-1994",
    "n_datapoints": 13,
    "learning_rate_pct": 19.0,
    "r_squared": 0.9297,
    "b_exponent": 0.3047,
    "b_stderr": 0.0265,
    "lr_ci_low": 15.7,
    "lr_ci_high": 22.3,
    "p_value": 0.0,
    "cost_label": "Price (Yen)",
    "annual_pct_change": -29.26,
    "halving_time_yrs": 2.0,
    "latest_price_2025": "<$30/watt (diode bars); $1-$500/unit depending on power",
    "latest_year": 2025,
    "cumulative_production_2025": "$8.58B market (2025); 9.9% CAGR to $13.76B by 2030",
    "primary_source": "IMARC / LaserDiodeSource",
    "source_url": "https://www.imarcgroup.com/laser-diode-market",
    "data_status": "current_2025",
    "notes": "Exponential decline in $/watt continues. Edge-emitting lasers 42% of revenue. Automotive LiDAR growing 13.4% CAGR.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 151,
    "name": "Titanium Sponge",
    "category": "Chemicals",
    "year_range": "1950-1968",
    "n_datapoints": 19,
    "learning_rate_pct": 17.5,
    "r_squared": 0.8031,
    "b_exponent": 0.2769,
    "b_stderr": 0.0343,
    "lr_ci_low": 13.2,
    "lr_ci_high": 21.5,
    "p_value": 0.0,
    "cost_label": "Price (1958 USD/lbs)",
    "annual_pct_change": -11.03,
    "halving_time_yrs": 5.9,
    "latest_price_2025": "$2,260/MT (TiO2 reference); titanium sponge ~$10,000-15,000/MT",
    "latest_year": 2025,
    "cumulative_production_2025": "~7.4 Mt TiO2 annual production",
    "primary_source": "ChemAnalyst / USGS",
    "source_url": "https://www.chemanalyst.com/Pricing-data/titanium-dioxide-52",
    "data_status": "needs_update",
    "notes": "Titanium Sponge. Related to TiO2 production chain.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 129,
    "name": "NeopreneRubber",
    "category": "Chemicals",
    "year_range": "1960-1972",
    "n_datapoints": 13,
    "learning_rate_pct": 16.5,
    "r_squared": 0.822,
    "b_exponent": 0.2602,
    "b_stderr": 0.0365,
    "lr_ci_low": 11.7,
    "lr_ci_high": 21.0,
    "p_value": 1.9e-05,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -2.15,
    "halving_time_yrs": 31.9,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 87,
    "name": "SCGT",
    "category": "Energy",
    "year_range": "1956-1978",
    "n_datapoints": 13,
    "learning_rate_pct": 16.1,
    "r_squared": 0.9254,
    "b_exponent": 0.2526,
    "b_stderr": 0.0359,
    "lr_ci_low": 10.1,
    "lr_ci_high": 21.7,
    "p_value": 0.002144,
    "cost_label": "Price (1990 USD/kW)",
    "annual_pct_change": -5.2,
    "halving_time_yrs": 13.0,
    "latest_price_2025": "$48-109/MWh (LCOE for gas combined cycle, Lazard 2025)",
    "latest_year": 2025,
    "cumulative_production_2025": "~6,800 GW global gas-fired capacity",
    "primary_source": "Lazard LCOE+ 2025",
    "source_url": "https://www.lazard.com/media/eijnqja3/lazards-lcoeplus-june-2025.pdf",
    "data_status": "current_2025",
    "notes": "SCGT/Gas turbine. LCOE trending up: $60 (2021) -> $76 (2024). Turbine shortages and rising equipment costs.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 149,
    "name": "Primary Aluminum",
    "category": "Chemicals",
    "year_range": "1929-2025",
    "n_datapoints": 97,
    "learning_rate_pct": 16.0,
    "r_squared": 0.7743,
    "b_exponent": 0.2522,
    "b_stderr": 0.014,
    "lr_ci_low": 14.4,
    "lr_ci_high": 17.6,
    "p_value": 0.0,
    "cost_label": "Price per Pound (1958 USD)",
    "annual_pct_change": -1.57,
    "halving_time_yrs": 43.8,
    "latest_price_2025": "$2,400-3,270/MT (LME aluminum)",
    "latest_year": 2025,
    "cumulative_production_2025": "72.3 Mt (2024); ~1.5 Bt cumulative est.",
    "primary_source": "TradingEconomics",
    "source_url": "https://tradingeconomics.com/commodity/aluminum",
    "data_status": "needs_update",
    "notes": "Primary Aluminum. China's 45 Mt production cap creating structural supply constraints.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 152,
    "name": "Electric Range",
    "category": "Consumer Goods",
    "year_range": "1946-1967",
    "n_datapoints": 22,
    "learning_rate_pct": 16.0,
    "r_squared": 0.6981,
    "b_exponent": 0.2508,
    "b_stderr": 0.0378,
    "lr_ci_low": 11.2,
    "lr_ci_high": 20.4,
    "p_value": 2e-06,
    "cost_label": "Price (1958 USD)",
    "annual_pct_change": -2.04,
    "halving_time_yrs": 33.6,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 28,
    "name": "Wheat (US)",
    "category": "Agriculture",
    "year_range": "1866-2024",
    "n_datapoints": 159,
    "learning_rate_pct": 15.6,
    "r_squared": 0.5627,
    "b_exponent": 0.2442,
    "b_stderr": 0.0182,
    "lr_ci_low": 13.4,
    "lr_ci_high": 17.7,
    "p_value": 0.0,
    "cost_label": "Cost (acres/1000 bushels)",
    "annual_pct_change": -1.01,
    "halving_time_yrs": 68.3,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 184,
    "name": "Ethanol 2",
    "category": "Energy",
    "year_range": "1978-1995",
    "n_datapoints": 18,
    "learning_rate_pct": 14.8,
    "r_squared": 0.8475,
    "b_exponent": 0.2305,
    "b_stderr": 0.0244,
    "lr_ci_low": 11.7,
    "lr_ci_high": 17.8,
    "p_value": 0.0,
    "cost_label": "Price (2004 USD/Gallon)",
    "annual_pct_change": -6.36,
    "halving_time_yrs": 10.6,
    "latest_price_2025": "$1.65/gal (US wholesale ethanol, Feb 2026)",
    "latest_year": 2025,
    "cumulative_production_2025": "US: 16.22 Bgal (2024 record); Global: ~127 Bliters",
    "primary_source": "USDA / RFA",
    "source_url": "https://ethanolrfa.org/markets-and-statistics/annual-ethanol-production",
    "data_status": "current_2025",
    "notes": "Ethanol 2 dataset. US production hit record 16.22 billion gallons in 2024.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 114,
    "name": "CarbonBlack",
    "category": "Chemicals",
    "year_range": "1964-1972",
    "n_datapoints": 9,
    "learning_rate_pct": 14.7,
    "r_squared": 0.9016,
    "b_exponent": 0.2286,
    "b_stderr": 0.0285,
    "lr_ci_low": 10.6,
    "lr_ci_high": 18.6,
    "p_value": 9e-05,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -1.22,
    "halving_time_yrs": 56.5,
    "latest_price_2025": "$2,410/MT (US); $910-1,003/MT (China)",
    "latest_year": 2025,
    "cumulative_production_2025": "~15 Mt annual (2025 est.)",
    "primary_source": "ChemAnalyst / IMARC",
    "source_url": "https://www.chemanalyst.com/Pricing-data/carbon-black-42",
    "data_status": "needs_update",
    "notes": "Historical dataset from BCG study. Major US-China price disparity.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 147,
    "name": "Polystyrene",
    "category": "Chemicals",
    "year_range": "1943-1968",
    "n_datapoints": 26,
    "learning_rate_pct": 13.9,
    "r_squared": 0.6896,
    "b_exponent": 0.216,
    "b_stderr": 0.0302,
    "lr_ci_low": 10.1,
    "lr_ci_high": 17.6,
    "p_value": 0.0,
    "cost_label": "Price per Pound (1958 USD)",
    "annual_pct_change": -5.58,
    "halving_time_yrs": 12.1,
    "latest_price_2025": "$1,260/MT (US); $1,620/MT (Europe)",
    "latest_year": 2025,
    "cumulative_production_2025": "~41.09 Mt annual (2025)",
    "primary_source": "ChemAnalyst / GlobeNewswire",
    "source_url": "https://www.chemanalyst.com/Pricing-data/polystyrene-ps-11",
    "data_status": "needs_update",
    "notes": "Polystyrene. Historical dataset from BCG chemicals study.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 22,
    "name": "Offshore Gas Pipeline",
    "category": "Energy",
    "year_range": "1984-1995",
    "n_datapoints": 12,
    "learning_rate_pct": 13.8,
    "r_squared": 0.2105,
    "b_exponent": 0.214,
    "b_stderr": 0.1382,
    "lr_ci_low": -7.1,
    "lr_ci_high": 30.6,
    "p_value": 0.15578,
    "cost_label": "Price (dollar/mile-inch\u00ef\u00bf\u00bd)",
    "annual_pct_change": -12.13,
    "halving_time_yrs": 5.4,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 146,
    "name": "Polypropylene",
    "category": "Chemicals",
    "year_range": "1959-1968",
    "n_datapoints": 10,
    "learning_rate_pct": 13.6,
    "r_squared": 0.9643,
    "b_exponent": 0.211,
    "b_stderr": 0.0154,
    "lr_ci_low": 11.4,
    "lr_ci_high": 15.8,
    "p_value": 3e-06,
    "cost_label": "Price per Pound (1958 USD)",
    "annual_pct_change": -10.78,
    "halving_time_yrs": 6.1,
    "latest_price_2025": "$976/MT (China); $1,160/MT (Europe)",
    "latest_year": 2025,
    "cumulative_production_2025": "~92.69 Mt annual (2025)",
    "primary_source": "ChemAnalyst / Statista",
    "source_url": "https://www.chemanalyst.com/Pricing-data/polypropylene-10",
    "data_status": "needs_update",
    "notes": "Polypropylene. Historical dataset ends ~1972. Mature commodity with 2-5% CAGR.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 95,
    "name": "Monochrome Television",
    "category": "Consumer Goods",
    "year_range": "1947-2010",
    "n_datapoints": "24",
    "learning_rate_pct": "-29.5",
    "r_squared": "0.2477",
    "b_exponent": "-0.5038",
    "b_stderr": "0.1916",
    "lr_ci_low": 10.0,
    "lr_ci_high": 15.2,
    "p_value": "0.008551",
    "cost_label": "Price per Unit (1958 USD)",
    "annual_pct_change": -5.88,
    "halving_time_yrs": 11.4,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": 2010,
    "nPoints": 24
  },
  {
    "id": 153,
    "name": "Beer (Japan)",
    "category": "Consumer Goods",
    "year_range": "1951-1968",
    "n_datapoints": 18,
    "learning_rate_pct": 12.2,
    "r_squared": 0.9721,
    "b_exponent": 0.1884,
    "b_stderr": 0.0082,
    "lr_ci_low": 11.2,
    "lr_ci_high": 13.3,
    "p_value": 0.0,
    "cost_label": "Retail Price Minus Indirect Tax (USD 1955)",
    "annual_pct_change": -3.35,
    "halving_time_yrs": 20.3,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 84,
    "name": "Ford Model-T",
    "category": "Automotive",
    "year_range": "1909-1921",
    "n_datapoints": 11,
    "learning_rate_pct": 11.8,
    "r_squared": 0.9282,
    "b_exponent": 0.1808,
    "b_stderr": 0.0205,
    "lr_ci_low": 8.7,
    "lr_ci_high": 14.8,
    "p_value": 0.000119,
    "cost_label": "Price (1958 USD)",
    "annual_pct_change": -9.48,
    "halving_time_yrs": 7.0,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "Ford Model-T. Historical dataset 1909-1923. No modern equivalent.",
    "dataQuality": "historical",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 302,
    "name": "BECCS",
    "category": "Carbon Removal",
    "year_range": "2017-2025",
    "n_datapoints": 9,
    "learning_rate_pct": 11.8,
    "r_squared": 0.9712,
    "b_exponent": 0.1815,
    "b_stderr": 0.0118,
    "lr_ci_low": 10.1,
    "lr_ci_high": 13.5,
    "p_value": 1e-06,
    "cost_label": "Cost (nominal $/tCO2)",
    "annual_pct_change": -6.23,
    "halving_time_yrs": 10.8,
    "latest_price_2025": "$75-300/tonne CO2 (FOAK); $40-50/t (biorefineries); $95-120/t (power/pulp)",
    "latest_year": 2025,
    "cumulative_production_2025": "3 large-scale plants operating (all ethanol); 47 active developers globally",
    "primary_source": "CDR.fyi / State of CDR",
    "source_url": "https://www.stateofcdr.org",
    "data_status": "current_2025",
    "notes": "BECCS. Strongest year in 2025. Stockholm Exergi, Drax, Hafslund Celsio are key players. Pipeline could 2x current capacity.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 99,
    "name": "Ethylene",
    "category": "Chemicals",
    "year_range": "1953-1968",
    "n_datapoints": 16,
    "learning_rate_pct": 10.6,
    "r_squared": 0.6495,
    "b_exponent": 0.1618,
    "b_stderr": 0.033,
    "lr_ci_low": 6.1,
    "lr_ci_high": 14.9,
    "p_value": 0.000286,
    "cost_label": "Price (1958 USD)",
    "annual_pct_change": -3.48,
    "halving_time_yrs": 19.6,
    "latest_price_2025": "~$800-1,000/MT (ethylene spot, 2025)",
    "latest_year": 2025,
    "cumulative_production_2025": "~200+ Mt annual global ethylene (2024)",
    "primary_source": "ChemAnalyst",
    "source_url": "https://www.chemanalyst.com/Pricing-data/polystyrene-ps-11",
    "data_status": "needs_update",
    "notes": "Ethylene. One of highest-volume petrochemicals. PCDB dataset ends ~1972.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 150,
    "name": "Primary Magnesium",
    "category": "Chemicals",
    "year_range": "1929-1968",
    "n_datapoints": 40,
    "learning_rate_pct": 10.6,
    "r_squared": 0.8703,
    "b_exponent": 0.161,
    "b_stderr": 0.0102,
    "lr_ci_low": 9.3,
    "lr_ci_high": 11.8,
    "p_value": 0.0,
    "cost_label": "Quoted Price per Pound (1958 USD)",
    "annual_pct_change": -2.8,
    "halving_time_yrs": 24.4,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 120,
    "name": "EthylAlcohol",
    "category": "Chemicals",
    "year_range": "1958-1972",
    "n_datapoints": 15,
    "learning_rate_pct": 10.5,
    "r_squared": 0.3216,
    "b_exponent": 0.1594,
    "b_stderr": 0.0642,
    "lr_ci_low": 1.4,
    "lr_ci_high": 18.7,
    "p_value": 0.027473,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -1.34,
    "halving_time_yrs": 51.2,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 29,
    "name": "Corn (US)",
    "category": "Agriculture",
    "year_range": "1975-2024",
    "n_datapoints": 50,
    "learning_rate_pct": 10.3,
    "r_squared": 0.594,
    "b_exponent": 0.1574,
    "b_stderr": 0.0234,
    "lr_ci_low": 7.3,
    "lr_ci_high": 13.2,
    "p_value": 0.0,
    "cost_label": "Cost (acres/1000 bushels)",
    "annual_pct_change": -1.43,
    "halving_time_yrs": 48.1,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 88,
    "name": "Solar Thermal",
    "category": "Energy",
    "year_range": "1984-2007",
    "n_datapoints": 9,
    "learning_rate_pct": 10.2,
    "r_squared": 0.4968,
    "b_exponent": 0.1553,
    "b_stderr": 0.0591,
    "lr_ci_low": 1.1,
    "lr_ci_high": 18.5,
    "p_value": 0.033974,
    "cost_label": "Price (2006 USD/kW)",
    "annual_pct_change": -1.51,
    "halving_time_yrs": 45.6,
    "latest_price_2025": "$3,677/kW (CSP installed cost reference)",
    "latest_year": 2024,
    "cumulative_production_2025": "~7 GW cumulative CSP capacity",
    "primary_source": "IRENA RPGC 2024",
    "source_url": "https://www.irena.org/Publications/2025/Jun/Renewable-Power-Generation-Costs-in-2024",
    "data_status": "needs_update",
    "notes": "Historical dataset ends 2007. CSP LCOE now $0.092/kWh, down 70% since 2010.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 126,
    "name": "Magnesium",
    "category": "Chemicals",
    "year_range": "1954-1972",
    "n_datapoints": 19,
    "learning_rate_pct": 9.5,
    "r_squared": 0.3022,
    "b_exponent": 0.1436,
    "b_stderr": 0.0529,
    "lr_ci_low": 2.2,
    "lr_ci_high": 16.2,
    "p_value": 0.014761,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -0.77,
    "halving_time_yrs": 90.2,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 305,
    "name": "Ocean Alkalinity Enhancement",
    "category": "Carbon Removal",
    "year_range": "2022-2025",
    "n_datapoints": 4,
    "learning_rate_pct": 9.2,
    "r_squared": 0.8913,
    "b_exponent": 0.1387,
    "b_stderr": 0.0343,
    "lr_ci_low": -0.6,
    "lr_ci_high": 18.0,
    "p_value": 0.055937,
    "cost_label": "Cost (nominal $/tCO2)",
    "annual_pct_change": -19.9,
    "halving_time_yrs": 3.1,
    "latest_price_2025": "$270/tonne CO2 (Planetary/Frontier deal); path to $50/t",
    "latest_year": 2025,
    "cumulative_production_2025": "115,211 t contracted (Planetary, 2026-2030); $43M total offtake",
    "primary_source": "Frontier Climate / CDR.fyi",
    "source_url": "https://frontierclimate.com/writing/planetary",
    "data_status": "current_2025",
    "notes": "Ocean Alkalinity Enhancement. Planetary Technologies: $31M Frontier deal. Steepest potential learning curve among CDR pathways.",
    "dataQuality": "insufficient",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 15,
    "name": "Wind Turbine (Denmark)",
    "category": "Energy",
    "year_range": "1981-2000",
    "n_datapoints": 20,
    "learning_rate_pct": 7.9,
    "r_squared": 0.8875,
    "b_exponent": 0.1187,
    "b_stderr": 0.0102,
    "lr_ci_low": 6.5,
    "lr_ci_high": 9.3,
    "p_value": 0.0,
    "cost_label": "Price (DKK/kW)",
    "annual_pct_change": -3.95,
    "halving_time_yrs": 17.2,
    "latest_price_2025": "$1,041/kW (global onshore wind installed cost)",
    "latest_year": 2024,
    "cumulative_production_2025": "1,136 GW total wind; 1,053 GW onshore",
    "primary_source": "IRENA RPGC 2024",
    "source_url": "https://www.irena.org/-/media/Files/IRENA/Agency/Publication/2025/Jul/IRENA_TEC_RPGC_in_2024_Summary_2025.pdf",
    "data_status": "needs_update",
    "notes": "Historical Denmark dataset ends 2000. Global onshore wind LCOE $0.034/kWh in 2024; 55% cost decline since 2010.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 86,
    "name": "CCGT Electricity",
    "category": "Energy",
    "year_range": "1981-1996",
    "n_datapoints": 14,
    "learning_rate_pct": 5.6,
    "r_squared": 0.7061,
    "b_exponent": 0.0824,
    "b_stderr": 0.016,
    "lr_ci_low": 3.2,
    "lr_ci_high": 7.8,
    "p_value": 0.000323,
    "cost_label": "Price (1990 US cent/kWh)",
    "annual_pct_change": -1.25,
    "halving_time_yrs": 55.2,
    "latest_price_2025": "$48-109/MWh (gas CC LCOE, Lazard 2025)",
    "latest_year": 2025,
    "cumulative_production_2025": "~6,800 GW global gas-fired capacity",
    "primary_source": "Lazard LCOE+ 2025",
    "source_url": "https://www.lazard.com/media/eijnqja3/lazards-lcoeplus-june-2025.pdf",
    "data_status": "current_2025",
    "notes": "CCGT Electricity. +3% LCOE YoY in 2025. Mature technology, no learning curve dynamics.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 41,
    "name": "Nuclear Power (OECD)",
    "category": "Energy",
    "year_range": "1975-1993",
    "n_datapoints": 19,
    "learning_rate_pct": 5.5,
    "r_squared": 0.9136,
    "b_exponent": 0.0819,
    "b_stderr": 0.0063,
    "lr_ci_low": 4.6,
    "lr_ci_high": 6.4,
    "p_value": 0.0,
    "cost_label": "Price (1990 USD/Watt)",
    "annual_pct_change": -0.79,
    "halving_time_yrs": 87.2,
    "latest_price_2025": "$7,821/kWe (EIA 2025 estimate); $15,700/kW (Vogtle actual)",
    "latest_year": 2024,
    "cumulative_production_2025": "~440 GW global nuclear capacity",
    "primary_source": "EIA AEO 2025",
    "source_url": "https://www.eia.gov/outlooks/aeo/electricity_generation/pdf/AEO2025_LCOE_report.pdf",
    "data_status": "needs_update",
    "notes": "Historical OECD dataset ends 1993. Current costs confirm persistent negative learning curve.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 174,
    "name": "Wind Electricity",
    "category": "Energy",
    "year_range": "1980-2024",
    "n_datapoints": 45,
    "learning_rate_pct": 5.2,
    "r_squared": 0.5895,
    "b_exponent": 0.0773,
    "b_stderr": 0.0103,
    "lr_ci_low": 3.8,
    "lr_ci_high": 6.6,
    "p_value": 0.0,
    "cost_label": "Cost (2005 US cents/KWH)",
    "annual_pct_change": -5.44,
    "halving_time_yrs": 12.4,
    "latest_price_2025": "$0.034/kWh (onshore LCOE); $0.079/kWh (offshore LCOE)",
    "latest_year": 2024,
    "cumulative_production_2025": "1,136 GW total wind cumulative (end 2024)",
    "primary_source": "IRENA RPGC 2024",
    "source_url": "https://www.irena.org/Publications/2025/Jun/Renewable-Power-Generation-Costs-in-2024",
    "data_status": "current_2025",
    "notes": "117 GW new wind capacity added in 2024 (record). Onshore $1,041/kW; offshore $2,852/kW installed cost.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 183,
    "name": "Wind Power",
    "category": "Energy",
    "year_range": "1981-2025",
    "n_datapoints": 39,
    "learning_rate_pct": 5.0,
    "r_squared": 0.3842,
    "b_exponent": 0.0739,
    "b_stderr": 0.0154,
    "lr_ci_low": 2.9,
    "lr_ci_high": 7.0,
    "p_value": 2.6e-05,
    "cost_label": "Price (2004 USD/W)",
    "annual_pct_change": -1.62,
    "halving_time_yrs": 42.4,
    "latest_price_2025": "$1,041/kW (onshore); $2,852/kW (offshore)",
    "latest_year": 2025,
    "cumulative_production_2025": "1,245 GW total wind (mid-2025)",
    "primary_source": "GWEC / WWEA",
    "source_url": "https://www.gwec.net/news/wind-industry-installs-record-capacity-in-2024-despite-policy-instability",
    "data_status": "current_2025",
    "notes": "Wind Power dataset through 2025. Capacity factor improved from 27% (2010) to 34% (2024).",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 85,
    "name": "CCGT Power",
    "category": "Energy",
    "year_range": "1981-1996",
    "n_datapoints": 14,
    "learning_rate_pct": 4.8,
    "r_squared": 0.1098,
    "b_exponent": 0.071,
    "b_stderr": 0.0609,
    "lr_ci_low": -4.5,
    "lr_ci_high": 13.3,
    "p_value": 0.268802,
    "cost_label": "Price (1990 USD/kW)",
    "annual_pct_change": -0.51,
    "halving_time_yrs": 135.2,
    "latest_price_2025": "$48-109/MWh (gas CC LCOE, Lazard 2025)",
    "latest_year": 2025,
    "cumulative_production_2025": "~6,800 GW global gas-fired capacity",
    "primary_source": "Lazard LCOE+ 2025",
    "source_url": "https://www.lazard.com/media/eijnqja3/lazards-lcoeplus-june-2025.pdf",
    "data_status": "current_2025",
    "notes": "CCGT Power. Same data as CCGT Electricity.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 17,
    "name": "Onshore Gas Pipeline",
    "category": "Energy",
    "year_range": "1979-1992",
    "n_datapoints": 14,
    "learning_rate_pct": 4.7,
    "r_squared": 0.1353,
    "b_exponent": 0.069,
    "b_stderr": 0.0526,
    "lr_ci_low": -3.3,
    "lr_ci_high": 12.0,
    "p_value": 0.216222,
    "cost_label": "Price (dollar/mile-inch\u00ef\u00bf\u00bd)",
    "annual_pct_change": -1.07,
    "halving_time_yrs": 64.4,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 16,
    "name": "Wind Turbine 2 (Germany)",
    "category": "Energy",
    "year_range": "1987-2000",
    "n_datapoints": 14,
    "learning_rate_pct": 4.2,
    "r_squared": 0.6341,
    "b_exponent": 0.0623,
    "b_stderr": 0.0143,
    "lr_ci_low": 2.1,
    "lr_ci_high": 6.3,
    "p_value": 0.001124,
    "cost_label": "Price (DEM/kW)",
    "annual_pct_change": -3.99,
    "halving_time_yrs": 17.0,
    "latest_price_2025": "$1,041/kW (global onshore wind installed cost)",
    "latest_year": 2024,
    "cumulative_production_2025": "1,136 GW total wind",
    "primary_source": "IRENA RPGC 2024",
    "source_url": "https://www.irena.org/-/media/Files/IRENA/Agency/Publication/2025/Jul/IRENA_TEC_RPGC_in_2024_Summary_2025.pdf",
    "data_status": "needs_update",
    "notes": "Historical Germany dataset ends 2000. Current global reference: $1,041/kW installed, $0.034/kWh LCOE.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 304,
    "name": "Biochar",
    "category": "Carbon Removal",
    "year_range": "2020-2025",
    "n_datapoints": 6,
    "learning_rate_pct": 4.1,
    "r_squared": 0.4726,
    "b_exponent": 0.0609,
    "b_stderr": 0.0321,
    "lr_ci_low": -2.0,
    "lr_ci_high": 9.9,
    "p_value": 0.131245,
    "cost_label": "Cost (nominal $/tCO2)",
    "annual_pct_change": -7.6,
    "halving_time_yrs": 8.8,
    "latest_price_2025": "$100-200/tonne CO2; average $164/t",
    "latest_year": 2025,
    "cumulative_production_2025": "3.04 Mt contracted (2022-H1 2025); 658k t delivered; 302k t retired",
    "primary_source": "CDR.fyi Biochar Market Snapshot 2025",
    "source_url": "https://www.cdr.fyi/blog/biochar-carbon-removal-market-snapshot-2025",
    "data_status": "current_2025",
    "notes": "Biochar. Most mature novel CDR pathway. 435% market growth 2023-2024. $304M market in 2025. Exomad Green 60% of supply.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 308,
    "name": "Kelp / Seaweed Farming",
    "category": "Carbon Removal",
    "year_range": "2020-2025",
    "n_datapoints": 6,
    "learning_rate_pct": 4.0,
    "r_squared": 0.8839,
    "b_exponent": 0.059,
    "b_stderr": 0.0107,
    "lr_ci_low": 2.0,
    "lr_ci_high": 6.0,
    "p_value": 0.005267,
    "cost_label": "Cost (nominal $/tCO2)",
    "annual_pct_change": -5.33,
    "halving_time_yrs": 12.7,
    "latest_price_2025": "$250/tonne CO2 (Running Tide's last price, pre-shutdown)",
    "latest_year": 2024,
    "cumulative_production_2025": "Minimal - Running Tide shut down Jun 2024",
    "primary_source": "Industry reporting",
    "source_url": "https://www.seafoodsource.com/news/environment-sustainability/carbon-removal-company-running-tide-shuts-down-operations",
    "data_status": "current_2025",
    "notes": "Running Tide folded Jun 2024 citing lack of demand. Remaining players (Phykos, Kelp Blue, Arbon Earth) are pre-commercial.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 160,
    "name": "Solar Thermal Electricity",
    "category": "Energy",
    "year_range": "1985-1991",
    "n_datapoints": 7,
    "learning_rate_pct": 3.4,
    "r_squared": 0.1228,
    "b_exponent": 0.0502,
    "b_stderr": 0.067,
    "lr_ci_low": -9.9,
    "lr_ci_high": 15.1,
    "p_value": 0.49578,
    "cost_label": "Cost (2004 USD/Watt)",
    "annual_pct_change": -6.45,
    "halving_time_yrs": 10.4,
    "latest_price_2025": "$0.092/kWh (CSP LCOE)",
    "latest_year": 2024,
    "cumulative_production_2025": "~7 GW cumulative CSP capacity",
    "primary_source": "IRENA RPGC 2024",
    "source_url": "https://www.irena.org/Publications/2025/Jun/Renewable-Power-Generation-Costs-in-2024",
    "data_status": "current_2025",
    "notes": "Solar Thermal Electricity. LCOE dropped 46% YoY in 2024. China CSP LCOE $0.069/kWh.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 303,
    "name": "Enhanced Weathering",
    "category": "Carbon Removal",
    "year_range": "2020-2025",
    "n_datapoints": 6,
    "learning_rate_pct": 3.4,
    "r_squared": 0.1627,
    "b_exponent": 0.0505,
    "b_stderr": 0.0573,
    "lr_ci_low": -7.8,
    "lr_ci_high": 13.5,
    "p_value": 0.427803,
    "cost_label": "Cost (nominal $/tCO2)",
    "annual_pct_change": -6.69,
    "halving_time_yrs": 10.0,
    "latest_price_2025": "$200-500/tonne CO2; suppliers seek $349/t; buyers resist above $271/t",
    "latest_year": 2025,
    "cumulative_production_2025": "Lithos: 5,160 t delivered (largest ERW issuance, Dec 2025); growing rapidly",
    "primary_source": "CDR.fyi / Frontier Climate",
    "source_url": "https://frontierclimate.com/writing/lithos",
    "data_status": "current_2025",
    "notes": "Enhanced Weathering. Costs fallen 26% since 2022. Lithos target: $100/t by 2030. Frontier deal: $57.1M.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 124,
    "name": "HydrofluoricAcid",
    "category": "Chemicals",
    "year_range": "1962-1972",
    "n_datapoints": 11,
    "learning_rate_pct": 1.2,
    "r_squared": 0.0149,
    "b_exponent": 0.0167,
    "b_stderr": 0.0453,
    "lr_ci_low": -6.1,
    "lr_ci_high": 7.9,
    "p_value": 0.720993,
    "cost_label": "Price (1966 USD/lbs)",
    "annual_pct_change": -0.15,
    "halving_time_yrs": 459.9,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "spliced_reverted",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 7,
    "name": "Ethanol (Brazil)",
    "category": "Energy",
    "year_range": "1980-2025",
    "n_datapoints": 46,
    "learning_rate_pct": 0.1,
    "r_squared": 0.0001,
    "b_exponent": 0.0021,
    "b_stderr": 0.0416,
    "lr_ci_low": -6.0,
    "lr_ci_high": 5.9,
    "p_value": 0.959789,
    "cost_label": "Price (USD per GJ)",
    "annual_pct_change": -2.22,
    "halving_time_yrs": 30.8,
    "latest_price_2025": "$1.65/gal equivalent (US); Brazil production ~30 Bliters/yr",
    "latest_year": 2025,
    "cumulative_production_2025": "Global: ~127 Bliters/yr",
    "primary_source": "EIA / USDA",
    "source_url": "https://www.eia.gov/todayinenergy/detail.php?id=66444",
    "data_status": "needs_update",
    "notes": "Brazil ethanol dataset. Brazil remains second-largest producer after the US.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 309,
    "name": "Carbon Mineralization (CarbFix)",
    "category": "Carbon Removal",
    "year_range": "2017-2025",
    "n_datapoints": 9,
    "learning_rate_pct": 0.1,
    "r_squared": 0.6159,
    "b_exponent": 0.0017,
    "b_stderr": 0.0005,
    "lr_ci_low": 0.0,
    "lr_ci_high": 0.2,
    "p_value": 0.012245,
    "cost_label": "Cost (nominal $/tCO2 storage)",
    "annual_pct_change": -0.12,
    "halving_time_yrs": 575.3,
    "latest_price_2025": "$24.80/tonne CO2 (CarbFix injection/storage cost only)",
    "latest_year": 2025,
    "cumulative_production_2025": "CarbFix: up to 106,000 t/yr permitted; Coda Terminal: 3 Mt/yr by 2031",
    "primary_source": "CarbFix / CDR.fyi",
    "source_url": "https://carboncredits.com/carbfix-secures-first-eu-permit-for-onshore-carbon-capture-storage/",
    "data_status": "current_2025",
    "notes": "Carbon Mineralization. EU first onshore storage permit (May 2025). Cost excludes capture. EUR 115M EU Innovation Fund for Coda Terminal.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 300,
    "name": "DAC Solid Sorbent (Climeworks)",
    "category": "Carbon Removal",
    "year_range": "2019-2025",
    "n_datapoints": 7,
    "learning_rate_pct": -0.3,
    "r_squared": 0.0049,
    "b_exponent": -0.0048,
    "b_stderr": 0.0309,
    "lr_ci_low": -6.0,
    "lr_ci_high": 5.0,
    "p_value": 0.881517,
    "cost_label": "Cost (nominal $/tCO2)",
    "annual_pct_change": -1.19,
    "halving_time_yrs": 57.8,
    "latest_price_2025": "$600-1,300/tonne CO2 (Climeworks operational)",
    "latest_year": 2025,
    "cumulative_production_2025": "Mammoth: 36,000 t/yr design (105 t actual yr 1); Orca: 4,000 t/yr; ~42.5 Mt total CDR contracted",
    "primary_source": "CDR.fyi / Climeworks",
    "source_url": "https://www.cdr.fyi/blog/direct-air-capture-market-snapshot-2025",
    "data_status": "current_2025",
    "notes": "Mammoth operational May 2024. Gen 3 tech in development. Target: $250-350/t capture cost by 2030. Early learning curve stage.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 159,
    "name": "Solar Water Heaters",
    "category": "Energy",
    "year_range": "1973-2024",
    "n_datapoints": "22",
    "learning_rate_pct": "-5.5",
    "r_squared": "0.326",
    "b_exponent": "-0.0814",
    "b_stderr": "0.0268",
    "lr_ci_low": -6.6,
    "lr_ci_high": 0.1,
    "p_value": "0.002436",
    "cost_label": "Cost (2004 USD/Watt)",
    "annual_pct_change": 1.41,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 301,
    "name": "DAC Liquid Solvent (Carbon Engineering)",
    "category": "Carbon Removal",
    "year_range": "2019-2025",
    "n_datapoints": 7,
    "learning_rate_pct": -3.6,
    "r_squared": 0.0352,
    "b_exponent": -0.0511,
    "b_stderr": 0.1196,
    "lr_ci_low": -28.2,
    "lr_ci_high": 16.3,
    "p_value": 0.687026,
    "cost_label": "Cost (nominal $/tCO2)",
    "annual_pct_change": -0.19,
    "halving_time_yrs": 359.9,
    "latest_price_2025": "$400-600/tonne CO2 (estimated)",
    "latest_year": 2025,
    "cumulative_production_2025": "Stratos: 500,000 t/yr design capacity; Class VI permits secured Apr 2025",
    "primary_source": "1PointFive / CDR.fyi",
    "source_url": "https://www.1pointfive.com/projects/ector-county-tx",
    "data_status": "current_2025",
    "notes": "DAC Liquid Solvent. Stratos facility: $1.3B investment in Texas. Target: $200-300/t by 2030. On track for 2025 start-up.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 98,
    "name": "Motor Gasoline",
    "category": "Chemicals",
    "year_range": "1946-2025",
    "n_datapoints": 80,
    "learning_rate_pct": -15.6,
    "r_squared": 0.3281,
    "b_exponent": -0.2087,
    "b_stderr": 0.034,
    "lr_ci_low": -21.1,
    "lr_ci_high": -10.3,
    "p_value": 0.0,
    "cost_label": "Price per Gallon (1958 USD)",
    "annual_pct_change": 1.53,
    "halving_time_yrs": "",
    "latest_price_2025": "~$2.50-3.50/gal (US retail gasoline, 2025)",
    "latest_year": 2025,
    "cumulative_production_2025": "~100 Mbbl/day global crude production",
    "primary_source": "EIA",
    "source_url": "https://www.eia.gov/petroleum/gasdiesel/",
    "data_status": "current_2025",
    "notes": "Motor Gasoline. Mature commodity; price driven by crude oil.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 97,
    "name": "Crude Oil",
    "category": "Chemicals",
    "year_range": "1946-2025",
    "n_datapoints": 80,
    "learning_rate_pct": -24.2,
    "r_squared": 0.3923,
    "b_exponent": -0.3126,
    "b_stderr": 0.0443,
    "lr_ci_low": -32.0,
    "lr_ci_high": -16.8,
    "p_value": 0.0,
    "cost_label": "Price (1958 USD)",
    "annual_pct_change": 1.42,
    "halving_time_yrs": "",
    "latest_price_2025": "~$70-80/bbl (WTI crude, 2025 average)",
    "latest_year": 2025,
    "cumulative_production_2025": "~100.6 Mbbl/day (2024 record)",
    "primary_source": "EIA / Trading Economics",
    "source_url": "https://tradingeconomics.com/commodity/crude-oil",
    "data_status": "current_2025",
    "notes": "Crude Oil. Negative learning rate (-24.2%) reflects commodity price volatility, not technology learning.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 161,
    "name": "Nuclear Electricity",
    "category": "Energy",
    "year_range": "1970-2025",
    "n_datapoints": 53,
    "learning_rate_pct": -88.1,
    "r_squared": 0.8832,
    "b_exponent": -0.9116,
    "b_stderr": 0.0707,
    "lr_ci_low": -108.2,
    "lr_ci_high": -69.9,
    "p_value": 0.0,
    "cost_label": "Cost (2004 USD/Watt)",
    "annual_pct_change": 3.97,
    "halving_time_yrs": "",
    "latest_price_2025": "$7,821-15,700/kWe (overnight cost range)",
    "latest_year": 2024,
    "cumulative_production_2025": "~440 GW global nuclear capacity",
    "primary_source": "EIA AEO 2025 / Vogtle actual costs",
    "source_url": "https://www.eia.gov/outlooks/aeo/electricity_generation/pdf/AEO2025_LCOE_report.pdf",
    "data_status": "current_2025",
    "notes": "Negative learning rate (-88.1%). Vogtle 3&4 actual: ~$15,700/kW ($35B/2.2GW). LCOE $141-220/MWh (Lazard 2025). Costs rising with cumulative production.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 405,
    "name": "Phi-s Symbolic Efficacy Index",
    "category": "Composite Index",
    "year_range": "2012-2024",
    "n_datapoints": 8,
    "learning_rate_pct": -4730.2,
    "r_squared": 0.9446,
    "b_exponent": -5.594,
    "b_stderr": 0.5533,
    "lr_ci_low": -12246.3,
    "lr_ci_high": -1789.7,
    "p_value": 5.4e-05,
    "cost_label": "Phi_s Index (2012=1)",
    "annual_pct_change": 346.77,
    "halving_time_yrs": "",
    "latest_price_2025": "N/A - composite index",
    "latest_year": 2024,
    "cumulative_production_2025": "N/A - composite metric",
    "primary_source": "Internal calculation",
    "source_url": "",
    "data_status": "current_2025",
    "notes": "Phi-s Symbolic Efficacy Index. Composite measure of AI symbolic reasoning capability.",
    "dataQuality": "not_cost_metric",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 404,
    "name": "AI Coding Capability (SWE-bench)",
    "category": "AI / Machine Learning",
    "year_range": "2023-2025",
    "n_datapoints": 7,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "SWE-bench Score (%)",
    "annual_pct_change": 302.25,
    "halving_time_yrs": "",
    "latest_price_2025": "79.2% (Claude Opus 4.6 Thinking); 80.9% (Claude Opus 4.5)",
    "latest_year": 2025,
    "cumulative_production_2025": "N/A - benchmark metric",
    "primary_source": "Epoch AI / SWE-bench",
    "source_url": "https://epoch.ai/benchmarks/swe-bench-verified",
    "data_status": "current_2025",
    "notes": "SWE-bench Verified scores doubled from ~33% (early 2024) to ~80% (late 2025). SWE-bench Pro still ~23% for best models.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 409,
    "name": "AI Reach Index",
    "category": "AI / Machine Learning",
    "year_range": "2012-2025",
    "n_datapoints": 14,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Reach Index",
    "annual_pct_change": 78.57,
    "halving_time_yrs": "",
    "latest_price_2025": "800M weekly active ChatGPT users (Oct 2025); >1B global AI users",
    "latest_year": 2025,
    "cumulative_production_2025": "5.72B monthly ChatGPT visits; 2-2.5B daily queries",
    "primary_source": "OpenAI / DemandSage / DataReportal",
    "source_url": "https://www.demandsage.com/chatgpt-statistics/",
    "data_status": "current_2025",
    "notes": "AI Reach Index. 8x growth from 100M (Jan 2023) to 800M WAU (Oct 2025). OpenAI ARR: $10B (Jun 2025). 92% of Fortune 500 using ChatGPT.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 401,
    "name": "AI Training Compute Cost",
    "category": "AI / Machine Learning",
    "year_range": "2015-2025",
    "n_datapoints": 11,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Cost ($/PFLOP-day)",
    "annual_pct_change": -44.37,
    "halving_time_yrs": 1.2,
    "latest_price_2025": "$78M-$500M per frontier training run (2023-2025)",
    "latest_year": 2025,
    "cumulative_production_2025": "OpenAI compute spend: ~$5B (2024), ~$9B (2025)",
    "primary_source": "Epoch AI",
    "source_url": "https://epoch.ai/blog/how-much-does-it-cost-to-train-frontier-ai-models",
    "data_status": "current_2025",
    "notes": "Training cost doubles every ~8 months. Composition: 47-67% hardware, 29-49% R&D staff, 2-6% energy. GPT-5 est. $200M-500M.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 306,
    "name": "Afforestation / Reforestation",
    "category": "Carbon Removal",
    "year_range": "2010-2025",
    "n_datapoints": 9,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Cost (nominal $/tCO2)",
    "annual_pct_change": -3.5,
    "halving_time_yrs": 19.4,
    "latest_price_2025": "$3.50-60/tonne CO2 (range); $14.80/t (high-quality A-AAA credits)",
    "latest_year": 2025,
    "cumulative_production_2025": "Large volumes in voluntary carbon market",
    "primary_source": "Carbon Credit market / Regreener",
    "source_url": "https://www.regreener.earth/blog/carbon-credit-prices-today-trends-and-forecasts-for-2026",
    "data_status": "current_2025",
    "notes": "Afforestation/Reforestation. 381% premium for removal vs avoidance credits. ARR Index hit $21.30/t record (Jun 2025).",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 408,
    "name": "Algorithmic Efficiency (1/PFLOP)",
    "category": "AI / Machine Learning",
    "year_range": "2012-2025",
    "n_datapoints": 14,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Capability per PFLOP",
    "annual_pct_change": 61.28,
    "halving_time_yrs": "",
    "latest_price_2025": "~3x reduction per year in compute needed for fixed performance",
    "latest_year": 2025,
    "cumulative_production_2025": "N/A - algorithmic metric",
    "primary_source": "Epoch AI",
    "source_url": "https://epoch.ai/data-insights/ai-capabilities-progress-has-sped-up",
    "data_status": "current_2025",
    "notes": "Algorithmic Efficiency (1/PFLOP). Compounds on hardware gains for ~5-10x/year effective improvement.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 403,
    "name": "Algorithmic Efficiency (ImageNet)",
    "category": "AI / Machine Learning",
    "year_range": "2012-2025",
    "n_datapoints": 9,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Compute Required (PFLOP)",
    "annual_pct_change": -52.44,
    "halving_time_yrs": 0.9,
    "latest_price_2025": "Compute needed declines ~3x per year for fixed performance",
    "latest_year": 2025,
    "cumulative_production_2025": "N/A - algorithmic metric",
    "primary_source": "Epoch AI",
    "source_url": "https://epoch.ai/trends",
    "data_status": "current_2025",
    "notes": "Algorithmic efficiency (ImageNet). Compute required for fixed benchmark drops 3x/year. 'Catch-up' progress may be 16x-60x/year.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 214,
    "name": "Bandwidth per cable length Cost (Undersea cable)",
    "category": "Information",
    "year_range": "1858-2002",
    "n_datapoints": 28,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Bandwidth per cable length Cost ((kbps/km) / 2004 USD)",
    "annual_pct_change": 21.07,
    "halving_time_yrs": "",
    "latest_price_2025": "$0.05/Mbps/month (100 GigE, competitive markets)",
    "latest_year": 2025,
    "cumulative_production_2025": "100 GigE majority of sales mix in major hubs",
    "primary_source": "TeleGeography",
    "source_url": "https://resources.telegeography.com/ip-transit-price-erosion-significant-regional-differences-remain",
    "data_status": "current_2025",
    "notes": "Persistent price erosion; ~60% decline since 2015. 400 GigE emerging at $0.08-0.09/Mbps.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 406,
    "name": "Compute Efficiency (GFLOPS/$)",
    "category": "AI / Machine Learning",
    "year_range": "2003-2025",
    "n_datapoints": 14,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "GFLOPS per Dollar",
    "annual_pct_change": 33.8,
    "halving_time_yrs": "",
    "latest_price_2025": "B200: ~56-79 GFLOPS/$ (FP16); H100: ~66-79 GFLOPS/$",
    "latest_year": 2025,
    "cumulative_production_2025": "~4x10^21 FLOP/s cumulative NVIDIA compute",
    "primary_source": "Epoch AI / NVIDIA",
    "source_url": "https://epoch.ai/data-insights/b200-cost-breakdown",
    "data_status": "current_2025",
    "notes": "GFLOPS per Dollar. FLOP/$ doubles every ~2.5 years. Combined with algorithmic efficiency: ~10-30x annual improvement in capability/$.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 181,
    "name": "Concentrating Solar",
    "category": "Energy",
    "year_range": "1980-2024",
    "n_datapoints": 41,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Cost (2005 US cents/KWH)",
    "annual_pct_change": -2.73,
    "halving_time_yrs": 25.0,
    "latest_price_2025": "$0.092/kWh (LCOE); $3,677/kW (installed cost)",
    "latest_year": 2024,
    "cumulative_production_2025": "~7 GW cumulative CSP capacity",
    "primary_source": "IRENA RPGC 2024",
    "source_url": "https://www.irena.org/-/media/Files/IRENA/Agency/Publication/2025/Jul/IRENA_TEC_RPGC_in_2024_Summary_2025.pdf",
    "data_status": "current_2025",
    "notes": "LCOE declined 46% in single year (2023-2024), driven by Chinese projects. 70% decline since 2010. No valid experience curve fit.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 407,
    "name": "Energy Efficiency (GFLOPS/W)",
    "category": "AI / Machine Learning",
    "year_range": "2003-2025",
    "n_datapoints": 14,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "GFLOPS per Watt",
    "annual_pct_change": 31.4,
    "halving_time_yrs": "",
    "latest_price_2025": "B200: ~2.25 TFLOPS/W (FP16); A100: ~0.78 TFLOPS/W",
    "latest_year": 2025,
    "cumulative_production_2025": "N/A - efficiency metric",
    "primary_source": "NVIDIA / Epoch AI",
    "source_url": "https://epoch.ai/trends",
    "data_status": "current_2025",
    "notes": "Energy Efficiency (GFLOPS/W). ~3x improvement A100 to B200 in 4 years.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 223,
    "name": "Energy Storage Density (Aggregate)",
    "category": "Energy",
    "year_range": "1884-2005",
    "n_datapoints": 85,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Energy Storage Density Performance (Wh/kg)",
    "annual_pct_change": 2.66,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 229,
    "name": "Energy Storage Density (Capacitor)",
    "category": "Energy",
    "year_range": "1962-2024",
    "n_datapoints": "21",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Energy Storage Density (Wh/kg)",
    "annual_pct_change": 15.19,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 230,
    "name": "Energy Storage Density (Flywheel)",
    "category": "Energy",
    "year_range": "1975-2025",
    "n_datapoints": "16",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Energy Storage Density (Wh/kg)",
    "annual_pct_change": 9.75,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 231,
    "name": "Energy Storage Density (Lead-acid)",
    "category": "Energy",
    "year_range": "1884-2025",
    "n_datapoints": "38",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Energy Storage Density (Wh/kg)",
    "annual_pct_change": 1.42,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 232,
    "name": "Energy Storage Density (Li-ion)",
    "category": "Energy",
    "year_range": "1986-2024",
    "n_datapoints": 30,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Energy Storage Density (Wh/kg)",
    "annual_pct_change": 3.62,
    "halving_time_yrs": "",
    "latest_price_2025": "~250-300 Wh/kg (commercial cells); 400+ Wh/kg (lab prototypes)",
    "latest_year": 2024,
    "cumulative_production_2025": "1,545 GWh global Li-ion shipments (2024)",
    "primary_source": "BloombergNEF / IEA",
    "source_url": "https://about.bnef.com/insights/clean-energy/lithium-ion-battery-pack-prices-fall-to-108-per-kilowatt-hour-despite-rising-metal-prices-bloombergnef/",
    "data_status": "current_2025",
    "notes": "Energy density metric. Pack price: $108/kWh (2025 BNEF). LFP packs: $81/kWh. China packs: $84/kWh.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 233,
    "name": "Energy Storage Density (Li-polymer)",
    "category": "Energy",
    "year_range": "1996-2024",
    "n_datapoints": "16",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Energy Storage Density (Wh/kg)",
    "annual_pct_change": 5.29,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 234,
    "name": "Energy Storage Density (NiCd)",
    "category": "Energy",
    "year_range": "1952-2024",
    "n_datapoints": "20",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Energy Storage Density (Wh/kg)",
    "annual_pct_change": 2.96,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 235,
    "name": "Energy Storage Density (NiMH)",
    "category": "Energy",
    "year_range": "1990-2024",
    "n_datapoints": "16",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Energy Storage Density (Wh/kg)",
    "annual_pct_change": 3.09,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 224,
    "name": "Energy per Unit Cost (Aggregate)",
    "category": "Energy",
    "year_range": "1950-2005",
    "n_datapoints": 38,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Energy per Unit Cost Performance (Wh/2005 USD)",
    "annual_pct_change": -4.57,
    "halving_time_yrs": 14.8,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 212,
    "name": "Information Storage Cost (Hard drive)",
    "category": "Information",
    "year_range": "1956-2025",
    "n_datapoints": 40,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Hard drive Information Storage per Unit Cost (Mbit/2004 USD)",
    "annual_pct_change": 39.28,
    "halving_time_yrs": "",
    "latest_price_2025": "$10-15/TB ($0.01-0.015/GB) for consumer HDDs",
    "latest_year": 2025,
    "cumulative_production_2025": "123.9M HDD units shipped (2024); 1,337 exabytes capacity",
    "primary_source": "Backblaze / DiskPrices.com",
    "source_url": "https://www.backblaze.com/blog/hard-drive-cost-per-gigabyte/",
    "data_status": "current_2025",
    "notes": "Information storage cost for hard drives. 46% price surge since Sep 2025 due to AI demand, but $10/TB milestone achieved.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 204,
    "name": "Information Storage Cost (Optical disk)",
    "category": "Information",
    "year_range": "1998-2024",
    "n_datapoints": "12",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Optical Disk information storage per unit cost (2004 USD)",
    "annual_pct_change": 41.04,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 206,
    "name": "Information Storage Cost (Printing)",
    "category": "Information",
    "year_range": "1910-2020",
    "n_datapoints": "33",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Printing Information storage per Unit Cost (2004 USD)",
    "annual_pct_change": -1.46,
    "halving_time_yrs": 47.1,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 208,
    "name": "Information Storage Cost (Punch card)",
    "category": "Information",
    "year_range": "1919-1932",
    "n_datapoints": 2,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Punch Card information storage per unit cost (Mbits/2004 USD)",
    "annual_pct_change": "",
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "insufficient",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 210,
    "name": "Information Storage Cost (Tape)",
    "category": "Information",
    "year_range": "1952-2025",
    "n_datapoints": "26",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Tape calculations per second per unit cost (Mbit/2004 USD)",
    "annual_pct_change": 27.84,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 201,
    "name": "Information Storage Volume (Handwriting)",
    "category": "Information",
    "year_range": "1890-2020",
    "n_datapoints": "18",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Information Storage per Unit Volume (Mbits/CC)",
    "annual_pct_change": 0.6,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 211,
    "name": "Information Storage Volume (Hard drive)",
    "category": "Information",
    "year_range": "1956-2025",
    "n_datapoints": "36",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Hard drive information storage per unit volume (Mbits/CC)",
    "annual_pct_change": 37.75,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 203,
    "name": "Information Storage Volume (Optical Disk)",
    "category": "Information",
    "year_range": "1981-2023",
    "n_datapoints": "22",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Optical Disk information storage per unit volume (Mbits/CC)",
    "annual_pct_change": 31.2,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 205,
    "name": "Information Storage Volume (Printing)",
    "category": "Information",
    "year_range": "1890-2020",
    "n_datapoints": "20",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Printing information per unit volume (Mbits/CC)",
    "annual_pct_change": 0.75,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 209,
    "name": "Information Storage Volume (Tape)",
    "category": "Information",
    "year_range": "1952-2025",
    "n_datapoints": "22",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Tape information storage per unit volume (Mbits/CC)",
    "annual_pct_change": 26.82,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 207,
    "name": "Information Storage per Volume (Punch card)",
    "category": "Information",
    "year_range": "1890-1932",
    "n_datapoints": 3,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Punch Card information storage per unit volume (Mbits/CC)",
    "annual_pct_change": 2.55,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "insufficient",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 215,
    "name": "Information Transformation (Aggregate)",
    "category": "Information",
    "year_range": "1891-2025",
    "n_datapoints": 133,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Calculations per second (MIPS)",
    "annual_pct_change": 50.19,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 216,
    "name": "Information Transformation Cost (Aggregate)",
    "category": "Information",
    "year_range": "1891-2004",
    "n_datapoints": 100,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Calculations per Second per unit cost (MIPS/2004 USD)",
    "annual_pct_change": 41.21,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "historical",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 202,
    "name": "Information Transformation Cost (Handwriting)",
    "category": "Information",
    "year_range": "1910-2020",
    "n_datapoints": "33",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Handwriting caculations per second per unit cost (MIPS/2004 USD)",
    "annual_pct_change": -1.46,
    "halving_time_yrs": 47.1,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 402,
    "name": "LLM Inference Cost",
    "category": "AI / Machine Learning",
    "year_range": "2020-2025",
    "n_datapoints": 9,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Cost (nominal $/M tokens output)",
    "annual_pct_change": -58.17,
    "halving_time_yrs": 0.8,
    "latest_price_2025": "$0.40/M tokens (GPT-4 equivalent performance); $0.10/M (Gemini Flash)",
    "latest_year": 2025,
    "cumulative_production_2025": "2-2.5B daily ChatGPT queries; 800M weekly active users",
    "primary_source": "Epoch AI / a16z",
    "source_url": "https://epoch.ai/data-insights/llm-inference-price-trends",
    "data_status": "current_2025",
    "notes": "150x price decline in 4 years ($60 to $0.40/M tokens for GPT-4-class). Performance-adjusted decline: 9x-900x/year. DeepSeek disrupted pricing.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 221,
    "name": "Lead-Acid Cost per Stored Energy",
    "category": "Energy",
    "year_range": "1950-2025",
    "n_datapoints": 42,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Cost (2005 USD/Wh)",
    "annual_pct_change": -1.75,
    "halving_time_yrs": 39.4,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 227,
    "name": "Power per Unit Cost (Aggregate)",
    "category": "Energy",
    "year_range": "1896-2002",
    "n_datapoints": 90,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Power per Unit Cost Performance (W/2005 USD)",
    "annual_pct_change": 0.65,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "historical",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 248,
    "name": "Powered Distance (AC)",
    "category": "Energy",
    "year_range": "1889-2019",
    "n_datapoints": "17",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Powered Distance (W.Km)",
    "annual_pct_change": 11.24,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": 2019,
    "nPoints": 17
  },
  {
    "id": 225,
    "name": "Powered Distance (Aggregate)",
    "category": "Energy",
    "year_range": "1889-2005",
    "n_datapoints": 63,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Powered Distance Performance (W.Km)",
    "annual_pct_change": 11.29,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": 2021,
    "nPoints": 83
  },
  {
    "id": 250,
    "name": "Powered Distance (Chain)",
    "category": "Energy",
    "year_range": "1936-2020",
    "n_datapoints": "12",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Powered Distance (W.Km)",
    "annual_pct_change": 0.6,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 251,
    "name": "Powered Distance (DC)",
    "category": "Energy",
    "year_range": "1962-2021",
    "n_datapoints": "36",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Powered Distance (W.Km)",
    "annual_pct_change": -0.19,
    "halving_time_yrs": 373.9,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": 2021,
    "nPoints": 36
  },
  {
    "id": 252,
    "name": "Powered Distance (Shaft)",
    "category": "Energy",
    "year_range": "1936-2020",
    "n_datapoints": "10",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Powered Distance (W.Km)",
    "annual_pct_change": 0.7,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 253,
    "name": "Powered Distance per Unit Cost (AC)",
    "category": "Energy",
    "year_range": "1889-2019",
    "n_datapoints": "16",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Powered Distance per Unit Cost (W.Km/2005 USD)",
    "annual_pct_change": 1.14,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": 2019,
    "nPoints": 16
  },
  {
    "id": 226,
    "name": "Powered Distance per Unit Cost (Aggregate)",
    "category": "Energy",
    "year_range": "1889-2005",
    "n_datapoints": 38,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Powered Distance per Unit Cost Performance (W.Km/2005 USD)",
    "annual_pct_change": 1.55,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": 2021,
    "nPoints": 49
  },
  {
    "id": 254,
    "name": "Powered Distance per Unit Cost (DC)",
    "category": "Energy",
    "year_range": "1962-2021",
    "n_datapoints": "32",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Power per Unit Cost (W.Km/2005 USD)",
    "annual_pct_change": -1.84,
    "halving_time_yrs": 37.4,
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": 2021,
    "nPoints": 32
  },
  {
    "id": 307,
    "name": "Soil Carbon Sequestration",
    "category": "Carbon Removal",
    "year_range": "2018-2025",
    "n_datapoints": 8,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Cost (nominal $/tCO2)",
    "annual_pct_change": -11.59,
    "halving_time_yrs": 5.6,
    "latest_price_2025": "$4-6/tonne CO2 (average AFOLU); $20+/t (premium projects)",
    "latest_year": 2025,
    "cumulative_production_2025": "830,000 credits retired (2024); 3.2 Mt total offtake deals by mid-2025",
    "primary_source": "CDR.fyi / Carbon market data",
    "source_url": "https://www.stateofcdr.org",
    "data_status": "current_2025",
    "notes": "Soil Carbon Sequestration. 80x increase in offtake deals mid-2025 vs 2024. Tech sector = 82% of volume.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 246,
    "name": "Stored Energy Density (NiCd)",
    "category": "Energy",
    "year_range": "1952-2014",
    "n_datapoints": "8",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Stored Energy Density (Wh/liter)",
    "annual_pct_change": 2.9,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 247,
    "name": "Stored Energy Density (NiMH)",
    "category": "Energy",
    "year_range": "1992-2024",
    "n_datapoints": "12",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Stored Energy Density (Wh/liter)",
    "annual_pct_change": 7.72,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 236,
    "name": "Stored Energy per Unit Cost (Capacitor)",
    "category": "Energy",
    "year_range": "1985-2025",
    "n_datapoints": "17",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Stored Energy per Unit Cost (Wh/2005 USD)",
    "annual_pct_change": 20.07,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 237,
    "name": "Stored Energy per Unit Cost (Lead-acid)",
    "category": "Energy",
    "year_range": "1950-2025",
    "n_datapoints": "27",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Stored Energy per Unit Cost (Wh/2005 USD)",
    "annual_pct_change": 3.44,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 239,
    "name": "Stored Energy per Unit Cost (Li-ion)",
    "category": "Energy",
    "year_range": "2000-2024",
    "n_datapoints": 23,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Stored Energy per Unit Cost (Wh/2005 USD)",
    "annual_pct_change": 13.55,
    "halving_time_yrs": "",
    "latest_price_2025": "$108/kWh (pack avg); $70/kWh (stationary storage)",
    "latest_year": 2025,
    "cumulative_production_2025": "1,545 GWh global shipments (2024); ~3 TWh manufacturing capacity",
    "primary_source": "BloombergNEF Dec 2025",
    "source_url": "https://about.bnef.com/insights/clean-energy/lithium-ion-battery-pack-prices-fall-to-108-per-kilowatt-hour-despite-rising-metal-prices-bloombergnef/",
    "data_status": "current_2025",
    "notes": "Li-ion stored energy per unit cost. 8% YoY decline. BEV pack $99/kWh. NMC $128/kWh. ~18-19% learning rate.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 241,
    "name": "Stored Energy per Unit Cost (NiMH)",
    "category": "Energy",
    "year_range": "2000-2025",
    "n_datapoints": "14",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Stored Energy per Unit Cost (Wh/2005 USD)",
    "annual_pct_change": 28.06,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 222,
    "name": "Stored Specific Energy (Aggregate)",
    "category": "Energy",
    "year_range": "1884-2003",
    "n_datapoints": 60,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Stored Specific Energy Performance (Wh/liter)",
    "annual_pct_change": 5.56,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 242,
    "name": "Stored Specific Energy (Capacitor)",
    "category": "Energy",
    "year_range": "1941-2024",
    "n_datapoints": "23",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Stored Specific Energy (Wh/liter)",
    "annual_pct_change": 15.66,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 243,
    "name": "Stored Specific Energy (Lead-acid)",
    "category": "Energy",
    "year_range": "1884-2025",
    "n_datapoints": "31",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Stored Specific Energy (Wh/liter)",
    "annual_pct_change": 2.32,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 244,
    "name": "Stored Specific Energy (Li-ion)",
    "category": "Energy",
    "year_range": "1986-2024",
    "n_datapoints": 28,
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Stored Specific Energy (Wh/liter)",
    "annual_pct_change": 3.86,
    "halving_time_yrs": "",
    "latest_price_2025": "~250-300 Wh/kg (commercial cells)",
    "latest_year": 2024,
    "cumulative_production_2025": "1,545 GWh global shipments (2024)",
    "primary_source": "BloombergNEF / IEA",
    "source_url": "https://about.bnef.com/insights/clean-energy/lithium-ion-battery-pack-prices-fall-to-108-per-kilowatt-hour-despite-rising-metal-prices-bloombergnef/",
    "data_status": "current_2025",
    "notes": "Stored specific energy metric for Li-ion.",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  },
  {
    "id": 245,
    "name": "Stored Specific Energy (Li-polymer)",
    "category": "Energy",
    "year_range": "1998-2024",
    "n_datapoints": "12",
    "learning_rate_pct": "",
    "r_squared": "",
    "b_exponent": "",
    "b_stderr": "",
    "lr_ci_low": "",
    "lr_ci_high": "",
    "p_value": "",
    "cost_label": "Stored Specific Energy (Wh/liter)",
    "annual_pct_change": 8.43,
    "halving_time_yrs": "",
    "latest_price_2025": "",
    "latest_year": "",
    "cumulative_production_2025": "",
    "primary_source": "",
    "source_url": "",
    "data_status": "historical_only",
    "notes": "",
    "dataQuality": "current_2025",
    "lastDataYear": null,
    "nPoints": null
  }
]