date settle CPI date Corn / CPI
12/31/1913 66.00 10 12/31/1913 6.6
12/31/1914 64.00 10.1 12/31/1914 6.3366337
12/31/1915 69.00 10.3 12/31/1915 6.6990291
12/29/1916 92.00 11.6 12/29/1916 7.9310345
12/31/1917 177.00 13.7 12/31/1917 12.919708
12/31/1918 145.00 16.5 12/31/1918 8.7878788
12/31/1919 147.00 18.9 12/31/1919 7.7777778
12/31/1920 75.00 19.4 12/31/1920 3.8659794
12/30/1921 47.38 17.3 12/30/1921 2.7384393
12/29/1922 72.75 16.9 12/29/1922 4.3047337
12/31/1923 70.88 17.3 12/31/1923 4.0968208
12/31/1924 120.38 17.3 12/31/1924 6.9580925
12/31/1925 76.50 17.9 12/31/1925 4.273743
12/31/1926 75.13 17.7 12/31/1926 4.2443503
12/30/1927 86.38 17.3 12/30/1927 4.9927746
12/31/1928 83.38 17.1 12/31/1928 4.875731
12/31/1929 87.50 17.2 12/31/1929 5.0872093
12/31/1930 69.50 16.1 12/31/1930 4.3167702
12/31/1931 37.13 14.6 12/31/1931 2.5428082
12/30/1932 23.00 13.1 12/30/1932 1.7557252
12/29/1933 46.50 13.2 12/29/1933 3.5227273
12/31/1934 93.25 13.4 12/31/1934 6.9589552
12/31/1935 59.00 13.8 12/31/1935 4.2753623
12/31/1936 107.25 14 12/31/1936 7.6607143
12/31/1937 56.13 14.4 12/31/1937 3.8975694
12/30/1938 57.00 14 12/30/1938 4.0714286
12/29/1939 56.25 14 12/29/1939 4.0178571
12/31/1940 65.50 14.1 12/31/1940 4.6453901
12/31/1941 81.00 15.5 12/31/1941 5.2258065
12/31/1942 94.00 16.9 12/31/1942 5.5621302
12/31/1943 107.00 17.4 12/31/1943 6.1494253
12/29/1944 116.00 17.8 12/29/1944 6.5168539
12/31/1945 118.50 18.2 12/31/1945 6.510989
12/31/1946 135.25 21.5 12/31/1946 6.2906977
12/31/1947 264.00 23.4 12/31/1947 11.282051
12/31/1948 147.88 24.1 12/31/1948 6.1358921
12/30/1949 134.25 23.6 12/30/1949 5.6885593
12/29/1950 176.00 25 12/29/1950 7.04
12/31/1951 195.75 26.5 12/31/1951 7.3867925
12/31/1952 163.13 26.7 12/31/1952 6.1095506
12/31/1953 159.00 26.9 12/31/1953 5.9107807
12/31/1954 157.38 26.7 12/31/1954 5.8941948
12/30/1955 128.75 26.8 12/30/1955 4.8041045
12/31/1956 135.00 27.6 12/31/1956 4.8913043
12/31/1957 118.13 28.4 12/31/1957 4.159331
12/31/1958 115.50 28.9 12/31/1958 3.9965398
12/31/1959 116.00 29.4 12/31/1959 3.9455782
12/30/1960 110.50 29.8 12/30/1960 3.7080537
12/29/1961 111.50 30 12/29/1961 3.7166667
12/31/1962 117.00 30.4 12/31/1962 3.8486842
12/31/1963 124.50 30.9 12/31/1963 4.0291262
12/31/1964 129.50 31.2 12/31/1964 4.150641
12/30/1965 126.50 31.8 12/30/1965 3.9779874
12/30/1966 144.00 32.9 12/30/1966 4.3768997
12/29/1967 113.50 33.9 12/29/1967 3.3480826
12/31/1968 119.00 35.5 12/31/1968 3.3521127
12/31/1969 122.25 37.7 12/31/1969 3.2427056
12/31/1970 157.50 39.8 12/31/1970 3.9572864
12/30/1971 122.25 41.1 12/30/1971 2.9744526
12/29/1972 156.25 42.5 12/29/1972 3.6764706
12/31/1973 266.50 46.2 12/31/1973 5.7683983
12/31/1974 341.75 51.9 12/31/1974 6.5847784
12/31/1975 255.50 55.5 12/31/1975 4.6036036
12/30/1976 251.75 58.2 12/30/1976 4.3256014
12/30/1977 220.25 62.1 12/30/1977 3.5466989
12/29/1978 228.75 67.7 12/29/1978 3.3788774
12/31/1979 271.00 76.7 12/31/1979 3.5332464
12/31/1980 362.00 86.3 12/31/1980 4.1946698
12/31/1981 251.50 94 12/31/1981 2.6755319
12/30/1982 242.75 97.6 12/30/1982 2.4871926
12/30/1983 335.25 101.3 12/30/1983 3.3094768
12/31/1984 275.25 105.3 12/31/1984 2.6139601
12/31/1985 254.25 109.3 12/31/1985 2.3261665
12/31/1986 160.00 110.5 12/31/1986 1.4479638
12/31/1987 183.25 115.4 12/31/1987 1.5879549
12/30/1988 277.50 120.5 12/30/1988 2.3029046
12/29/1989 237.25 126.1 12/29/1989 1.8814433
12/31/1990 237.75 133.8 12/31/1990 1.7769058
12/31/1991 256.50 137.9 12/31/1991 1.8600435
12/31/1992 219.00 141.9 12/31/1992 1.5433404
12/30/1993 311.00 145.8 12/30/1993 2.133059
12/30/1994 236.00 149.7 12/30/1994 1.5764863
12/29/1995 369.25 153.5 12/29/1995 2.4055375
12/31/1996 268.25 158.6 12/31/1996 1.6913619
12/31/1997 269.00 161.3 12/31/1997 1.6676999
12/31/1998 213.25 163.9 12/31/1998 1.3010982
12/30/1999 204.50 168.3 12/30/1999 1.2150921
12/29/2000 222.25 174 12/29/2000 1.2772989
12/31/2001 205.00 176.7 12/31/2001 1.1601585
12/31/2002 240.75 180.9 12/31/2002 1.3308458
6/6/2003 249.75 183.8 6/6/2003 1.3588139