Official data by year
Each series comes from the agency that publishes it and is checked against a second copy of the same data before it goes out. A series that failed its check was left out. Every value also appears on that year’s facts record and in the world on a date. Index: /api/official/index.json. Retrieved 2026-10-27.
- Civilian unemployment rate, seasonally adjusted (U-3)
- Consumer Price Index for All Urban Consumers (CPI-U), U.S. city average, all items, not seasonally adjusted
- Effective federal funds rate
- U.S. gross domestic product, current dollars (nominal)
- U.S. population, midperiod (BEA NIPA definition, based on Census Bureau data)
- Total U.S. public debt outstanding at end of fiscal year
- Atmospheric CO2 at Mauna Loa Observatory, Hawaii
- Global land and ocean surface temperature anomaly (NOAAGlobalTemp), relative to the 1901-2000 average
- Foreign exchange rate: U.S. dollars per British pound (noon buying rates in New York)
- Foreign exchange rate: Japanese yen per U.S. dollar (noon buying rates in New York)
- Foreign exchange rate: Canadian dollars per U.S. dollar (noon buying rates in New York)
- Foreign exchange rate: Swiss francs per U.S. dollar (noon buying rates in New York)
- Foreign exchange rate: U.S. dollars per euro (noon buying rates in New York)
- Foreign exchange rate: Mexican pesos per U.S. dollar (noon buying rates in New York)
- Foreign exchange rate: Chinese yuan renminbi per U.S. dollar (noon buying rates in New York)
- Foreign exchange rate: Indian rupees per U.S. dollar (noon buying rates in New York)
- Number of magnitude 7.0+ earthquakes worldwide per year, per the USGS ComCat catalog as of retrieval
Civilian unemployment rate, seasonally adjusted (U-3)
percent of civilian labor force. Source: U.S. Bureau of Labor Statistics (Current Population Survey), via FRED series UNRATE (Public domain (U.S. government work)). Annual value: mean of the 12 seasonally adjusted monthly values, rounded to 2 decimals (computed by slashyear). Note: BLS's own published annual average is computed from not-seasonally-adjusted data (LNU04000000) and can differ by about 0.1 point..
Checked against BLS Public Data API v1, series LNS14000000 (sampled decades 1948-57, 1975-84, 2000-09, 2016-25): 479 values compared, largest difference 0.
/api/official/unemployment_rate.json
Consumer Price Index for All Urban Consumers (CPI-U), U.S. city average, all items, not seasonally adjusted
index, 1982-84=100. Source: U.S. Bureau of Labor Statistics, via FRED series CPIAUCNS (Public domain (U.S. government work)). Annual value: mean of the 12 not-seasonally-adjusted monthly index values, rounded to 3 decimals (computed by slashyear; BLS also publishes an annual average, not available via the keyless API, which may differ in the last digit for early years where monthly values are published to 1 decimal).
Checked against BLS Public Data API v1, series CUUR0000SA0 (sampled decades 1913-22, 1970-79, 2015-24): 360 values compared, largest difference 0.
Effective federal funds rate
percent per year. Source: Board of Governors of the Federal Reserve System (H.15 Selected Interest Rates), via FRED series FEDFUNDS (Public domain (U.S. government work)). Annual value: as published annual average in the Federal Reserve's H.15 release (DDP series RIFSPFF_N.A, an average of daily rates); 1954 omitted (series begins July 1954).
Checked against Federal Reserve Board H.15 Data Download Program, series RIFSPFF_N.M (all months): 867 values compared, largest difference 0.
/api/official/fed_funds_rate.json
U.S. gross domestic product, current dollars (nominal)
billions of U.S. dollars. Source: U.S. Bureau of Economic Analysis (NIPA Table 1.1.5), via FRED series GDPA (Public domain (U.S. government work)). Annual value: as published annual (BEA).
Checked against BEA NIPA flat file NipaDataA.txt, series A191RC (millions of dollars, converted to billions): 97 values compared, largest difference 0.
U.S. population, midperiod (BEA NIPA definition, based on Census Bureau data)
thousands of persons. Source: U.S. Bureau of Economic Analysis (NIPA Table 2.1, line 40; derived from U.S. Census Bureau estimates), via FRED series B230RC0A052NBEA (Public domain (U.S. government work)). Annual value: as published annual (BEA midperiod population).
Checked against BEA NIPA flat file NipaDataA.txt, series B230RC (NIPA Table 2.1 line 40): 97 values compared, largest difference 0.
/api/official/us_population.json
Total U.S. public debt outstanding at end of fiscal year
U.S. dollars (nominal); keys are FISCAL years, value as of the fiscal-year-end record date. Source: U.S. Department of the Treasury, Bureau of the Fiscal Service (Historical Debt Outstanding) (Public domain (U.S. government work)). Annual value: as published: one value per fiscal year (record_fiscal_year) at the dataset's record_date. Fiscal-year end changed over time (e.g. Jan 1 in early years, June 30 until 1976, Sept 30 from 1977); the exact date for each year is in fiscal_year_end_dates..
Checked against Treasury Fiscal Data 'Debt to the Penny' (tot_pub_debt_out_amt) on each fiscal-year-end date, 1993+: 34 values compared, largest difference 18.
/api/official/federal_debt.json
Atmospheric CO2 at Mauna Loa Observatory, Hawaii
ppm (micromol/mol, dry air mole fraction, WMO X2019 scale). Source: NOAA Global Monitoring Laboratory (with Scripps Institution of Oceanography for pre-1974 data) (NOAA GML data are freely available to the public (U.S. government work); GML asks users to cite the data and the Mauna Loa CO2 record (Keeling et al. / NOAA GML).). Annual value: as published annual mean (co2_annmean_mlo.txt).
Checked against mean of 12 monthly means in NOAA GML co2_mm_mlo.txt (years with 12 months): 67 values compared, largest difference 0.01.
/api/official/co2_mauna_loa.json
Global land and ocean surface temperature anomaly (NOAAGlobalTemp), relative to the 1901-2000 average
degrees Celsius, departure from 1901-2000 mean. Source: NOAA National Centers for Environmental Information (Climate at a Glance, global time series) (Public domain (U.S. government work)). Annual value: as published annual (January-December) anomaly in Climate at a Glance.
Checked against NOAAGlobalTemp aravg.ann.land_ocean.90S.90N.v6.1.0.202609.asc (NCEI data server), re-baselined from the file's native climatology to 1901-2000 by subtracting the file's own 1901-2000 mean: 176 values compared, largest difference 0.00499202.
/api/official/global_temp_anomaly.json
Foreign exchange rate: U.S. dollars per British pound (noon buying rates in New York)
U.S. dollars per British pound. Source: Board of Governors of the Federal Reserve System (H.10 Foreign Exchange Rates), via FRED series DEXUSUK (Public domain (U.S. government work)). Annual value: mean of all available daily values in the calendar year (no fills for holidays/missing days), rounded to 4 decimals; first year omitted if the series starts after Jan 10; current year omitted.
Checked against Federal Reserve Board H.10 Data Download Program, series RXI$US_N.B.UK (every overlapping day): 13995 values compared, largest difference 0.
Foreign exchange rate: Japanese yen per U.S. dollar (noon buying rates in New York)
Japanese yen per U.S. dollar. Source: Board of Governors of the Federal Reserve System (H.10 Foreign Exchange Rates), via FRED series DEXJPUS (Public domain (U.S. government work)). Annual value: mean of all available daily values in the calendar year (no fills for holidays/missing days), rounded to 4 decimals; first year omitted if the series starts after Jan 10; current year omitted.
Checked against Federal Reserve Board H.10 Data Download Program, series RXI_N.B.JA (every overlapping day): 13989 values compared, largest difference 0.
Foreign exchange rate: Canadian dollars per U.S. dollar (noon buying rates in New York)
Canadian dollars per U.S. dollar. Source: Board of Governors of the Federal Reserve System (H.10 Foreign Exchange Rates), via FRED series DEXCAUS (Public domain (U.S. government work)). Annual value: mean of all available daily values in the calendar year (no fills for holidays/missing days), rounded to 4 decimals; first year omitted if the series starts after Jan 10; current year omitted.
Checked against Federal Reserve Board H.10 Data Download Program, series RXI_N.B.CA (every overlapping day): 14001 values compared, largest difference 0.
Foreign exchange rate: Swiss francs per U.S. dollar (noon buying rates in New York)
Swiss francs per U.S. dollar. Source: Board of Governors of the Federal Reserve System (H.10 Foreign Exchange Rates), via FRED series DEXSZUS (Public domain (U.S. government work)). Annual value: mean of all available daily values in the calendar year (no fills for holidays/missing days), rounded to 4 decimals; first year omitted if the series starts after Jan 10; current year omitted.
Checked against Federal Reserve Board H.10 Data Download Program, series RXI_N.B.SZ (every overlapping day): 13995 values compared, largest difference 0.
Foreign exchange rate: U.S. dollars per euro (noon buying rates in New York)
U.S. dollars per euro. Source: Board of Governors of the Federal Reserve System (H.10 Foreign Exchange Rates), via FRED series DEXUSEU (Public domain (U.S. government work)). Annual value: mean of all available daily values in the calendar year (no fills for holidays/missing days), rounded to 4 decimals; first year omitted if the series starts after Jan 10; current year omitted.
Checked against Federal Reserve Board H.10 Data Download Program, series RXI$US_N.B.EU (every overlapping day): 6974 values compared, largest difference 0.
Foreign exchange rate: Mexican pesos per U.S. dollar (noon buying rates in New York)
Mexican pesos per U.S. dollar. Source: Board of Governors of the Federal Reserve System (H.10 Foreign Exchange Rates), via FRED series DEXMXUS (Public domain (U.S. government work)). Annual value: mean of all available daily values in the calendar year (no fills for holidays/missing days), rounded to 4 decimals; first year omitted if the series starts after Jan 10; current year omitted.
Checked against Federal Reserve Board H.10 Data Download Program, series RXI_N.B.MX (every overlapping day): 8263 values compared, largest difference 0.
Foreign exchange rate: Chinese yuan renminbi per U.S. dollar (noon buying rates in New York)
Chinese yuan renminbi per U.S. dollar. Source: Board of Governors of the Federal Reserve System (H.10 Foreign Exchange Rates), via FRED series DEXCHUS (Public domain (U.S. government work)). Annual value: mean of all available daily values in the calendar year (no fills for holidays/missing days), rounded to 4 decimals; first year omitted if the series starts after Jan 10; current year omitted.
Checked against Federal Reserve Board H.10 Data Download Program, series RXI_N.B.CH (every overlapping day): 11435 values compared, largest difference 0.
Foreign exchange rate: Indian rupees per U.S. dollar (noon buying rates in New York)
Indian rupees per U.S. dollar. Source: Board of Governors of the Federal Reserve System (H.10 Foreign Exchange Rates), via FRED series DEXINUS (Public domain (U.S. government work)). Annual value: mean of all available daily values in the calendar year (no fills for holidays/missing days), rounded to 4 decimals; first year omitted if the series starts after Jan 10; current year omitted.
Checked against Federal Reserve Board H.10 Data Download Program, series RXI_N.B.IN (every overlapping day): 13487 values compared, largest difference 0.
Number of magnitude 7.0+ earthquakes worldwide per year, per the USGS ComCat catalog as of retrieval
count of events (magnitude >= 7.0, eventtype=earthquake, UTC calendar year). Source: U.S. Geological Survey, Earthquake Hazards Program (ANSS Comprehensive Catalog, ComCat) (Public domain (U.S. government work)). Annual value: FDSN 'count' endpoint per UTC calendar year (minmagnitude=7, eventtype=earthquake).
Checked against USGS ComCat FDSN 'query' endpoint (GeoJSON, per-decade), events counted per UTC year: 126 values compared, largest difference 0.
/api/official/earthquakes_m7plus.json