Year	constant 2021 US$
1966	102010002.13623
1967	111690002.441406
1968	129529998.779297
1969	129149993.896484
1970	138759994.506836
1971	129779998.779297
1972	155600006.10351598
1973	233660003.66210902
1974	169509994.506836
1975	251880004.882813
1976	274390014.64843804
1977	277459991.455078
1978	253770004.272461
1979	344279998.779297
1980	339239990.234375
1981	359459991.455078
1982	458049987.792969
1983	497089996.33789104
1984	514989990.234375
1985	502549987.792969
1986	530330017.089844
1987	534140014.648438
1988	578000000
1989	521890014.648438
1990	390239990.234375
1991	472779998.779297
1992	456529998.779297
1993	489980010.986328
1994	525669982.910156
1995	573229980.46875
1996	519090026.855469
1997	533750000
1998	538799987.792969
1999	532260009.765625