3d700a33a8
Added authoritative U.S. GDP data from FRED/BEA covering 96 years of economic history: - Real GDP quarterly data: Q1 1947 - Q2 2025 (314 data points) - Real GDP annual data: 1929 - 2024 (96 data points) Includes comprehensive research-backed documentation: - Complete source verification (10 parallel research agents, 95%+ confidence) - Full methodology documentation and data quality standards - Download instructions, APIs, and update procedures - Historical context from Great Depression through COVID-19 Updated main README with Data directory documentation and dataset comparison table. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
1.9 KiB
1.9 KiB
| 1 | observation_date | GDPCA |
|---|---|---|
| 2 | 1929-01-01 | 1191.124 |
| 3 | 1930-01-01 | 1089.785 |
| 4 | 1931-01-01 | 1019.977 |
| 5 | 1932-01-01 | 888.414 |
| 6 | 1933-01-01 | 877.431 |
| 7 | 1934-01-01 | 972.263 |
| 8 | 1935-01-01 | 1058.836 |
| 9 | 1936-01-01 | 1195.251 |
| 10 | 1937-01-01 | 1256.503 |
| 11 | 1938-01-01 | 1214.869 |
| 12 | 1939-01-01 | 1312.365 |
| 13 | 1940-01-01 | 1428.075 |
| 14 | 1941-01-01 | 1681.049 |
| 15 | 1942-01-01 | 1998.542 |
| 16 | 1943-01-01 | 2338.761 |
| 17 | 1944-01-01 | 2524.752 |
| 18 | 1945-01-01 | 2500.057 |
| 19 | 1946-01-01 | 2209.911 |
| 20 | 1947-01-01 | 2184.614 |
| 21 | 1948-01-01 | 2274.627 |
| 22 | 1949-01-01 | 2261.928 |
| 23 | 1950-01-01 | 2458.532 |
| 24 | 1951-01-01 | 2656.320 |
| 25 | 1952-01-01 | 2764.803 |
| 26 | 1953-01-01 | 2894.411 |
| 27 | 1954-01-01 | 2877.708 |
| 28 | 1955-01-01 | 3083.026 |
| 29 | 1956-01-01 | 3148.765 |
| 30 | 1957-01-01 | 3215.065 |
| 31 | 1958-01-01 | 3191.216 |
| 32 | 1959-01-01 | 3412.421 |
| 33 | 1960-01-01 | 3500.272 |
| 34 | 1961-01-01 | 3590.066 |
| 35 | 1962-01-01 | 3810.124 |
| 36 | 1963-01-01 | 3976.142 |
| 37 | 1964-01-01 | 4205.277 |
| 38 | 1965-01-01 | 4478.555 |
| 39 | 1966-01-01 | 4773.931 |
| 40 | 1967-01-01 | 4904.864 |
| 41 | 1968-01-01 | 5145.914 |
| 42 | 1969-01-01 | 5306.594 |
| 43 | 1970-01-01 | 5316.391 |
| 44 | 1971-01-01 | 5491.445 |
| 45 | 1972-01-01 | 5780.048 |
| 46 | 1973-01-01 | 6106.371 |
| 47 | 1974-01-01 | 6073.363 |
| 48 | 1975-01-01 | 6060.875 |
| 49 | 1976-01-01 | 6387.437 |
| 50 | 1977-01-01 | 6682.804 |
| 51 | 1978-01-01 | 7052.711 |
| 52 | 1979-01-01 | 7275.999 |
| 53 | 1980-01-01 | 7257.316 |
| 54 | 1981-01-01 | 7441.485 |
| 55 | 1982-01-01 | 7307.314 |
| 56 | 1983-01-01 | 7642.266 |
| 57 | 1984-01-01 | 8195.295 |
| 58 | 1985-01-01 | 8537.004 |
| 59 | 1986-01-01 | 8832.611 |
| 60 | 1987-01-01 | 9137.745 |
| 61 | 1988-01-01 | 9519.427 |
| 62 | 1989-01-01 | 9869.003 |
| 63 | 1990-01-01 | 10055.129 |
| 64 | 1991-01-01 | 10044.238 |
| 65 | 1992-01-01 | 10398.046 |
| 66 | 1993-01-01 | 10684.179 |
| 67 | 1994-01-01 | 11114.647 |
| 68 | 1995-01-01 | 11413.012 |
| 69 | 1996-01-01 | 11843.599 |
| 70 | 1997-01-01 | 12370.299 |
| 71 | 1998-01-01 | 12924.876 |
| 72 | 1999-01-01 | 13543.774 |
| 73 | 2000-01-01 | 14096.033 |
| 74 | 2001-01-01 | 14230.726 |
| 75 | 2002-01-01 | 14472.712 |
| 76 | 2003-01-01 | 14877.312 |
| 77 | 2004-01-01 | 15449.757 |
| 78 | 2005-01-01 | 15987.957 |
| 79 | 2006-01-01 | 16433.148 |
| 80 | 2007-01-01 | 16762.445 |
| 81 | 2008-01-01 | 16781.485 |
| 82 | 2009-01-01 | 16349.110 |
| 83 | 2010-01-01 | 16789.750 |
| 84 | 2011-01-01 | 17052.410 |
| 85 | 2012-01-01 | 17442.759 |
| 86 | 2013-01-01 | 17812.167 |
| 87 | 2014-01-01 | 18261.714 |
| 88 | 2015-01-01 | 18799.622 |
| 89 | 2016-01-01 | 19141.672 |
| 90 | 2017-01-01 | 19612.102 |
| 91 | 2018-01-01 | 20193.896 |
| 92 | 2019-01-01 | 20715.671 |
| 93 | 2020-01-01 | 20284.500 |
| 94 | 2021-01-01 | 21532.407 |
| 95 | 2022-01-01 | 22075.931 |
| 96 | 2023-01-01 | 22723.719 |
| 97 | 2024-01-01 | 23358.435 |