name: cpi-reference
description: CPI-U annual averages (1929-2024) for inflation adjustment. Use when question mentions inflation, CPI, constant dollars, or real dollars. Formula: real_value = nominal_value × (target_CPI / source_CPI)
1929:17.2 1930:16.7 1931:15.2 1932:13.6 1933:12.9 1934:13.4 1935:13.7 1936:13.9 1937:14.4 1938:14.1
1939:13.9 1940:14.0 1941:14.7 1942:16.3 1943:17.3 1944:17.6 1945:18.0 1946:19.5 1947:22.3 1948:24.1
1949:23.8 1950:24.1 1951:26.0 1952:26.5 1953:26.7 1954:26.9 1955:26.8 1956:27.2 1957:28.1 1958:28.9
1959:29.1 1960:29.6 1961:29.9 1962:30.2 1963:30.6 1964:31.0 1965:31.5 1966:32.4 1967:33.4 1968:34.8
1969:36.7 1970:38.8 1971:40.5 1972:41.8 1973:44.4 1974:49.3 1975:53.8 1976:56.9 1977:60.6 1978:65.2
1979:72.6 1980:82.4 1981:90.9 1982:96.5 1983:99.6 1984:103.9 1985:107.6 1986:109.6 1987:113.6 1988:118.3
1989:124.0 1990:130.7 1991:136.2 1992:140.3 1993:144.5 1994:148.2 1995:152.4 1996:156.9 1997:160.5 1998:163.0
1999:166.6 2000:172.2 2001:177.1 2002:179.9 2003:184.0 2004:188.9 2005:195.3 2006:201.6 2007:207.3 2008:215.3
2009:214.5 2010:218.1 2011:224.9 2012:229.6 2013:233.0 2014:236.7 2015:237.0 2016:240.0 2017:245.1 2018:251.1
2019:255.7 2020:258.8 2021:271.0 2022:292.7 2023:304.7 2024:314.2
