Year	current US$
1960	105260002.13623
1961	107349998.47412099
1962	106400001.52587901
1963	113639999.38964799
1964	95959999.0844727
1965	122830001.831055
1966	111099998.47412099
1967	70669998.1689453
1968	61990001.6784668
1969	55150001.5258789
1970	63159999.8474121
1971	72220001.2207031
1972	85370002.746582
1973	186039993.28613302
1974	117589996.337891
1975	467480010.986328
1976	643340026.855469
1977	797400024.414063
1978	899669982.910156
1979	1184680053.71094
1980	892159973.144531
1981	772409973.144531
1982	857440002.441406
1983	1344979980.46875
1984	1255910034.17969
1985	1978400024.41406
1986	1937109985.35156
1987	1250800048.82813
1988	1241060058.59375
1989	1191760009.76563
1990	1371890014.64844
1991	1749459960.9375
1992	2065770019.53125
1993	1266170043.94531
1994	1237180053.71094
1995	335589996.33789104
1996	2216760009.76563
1997	1196349975.58594
1998	1066069946.28906
1999	905710021.972656
2000	800000000
2001	172350006.10351598
2002	756869995.117188
2003	439989990.234375
2004	478850006.10351604