Year	current US$
1960	30912004.94592079
1961	30688004.910080787
1962	34384005.50144088
1963	42336006.773761086
1964	52080008.332801335
1965	65408010.46528167
1966	81312013.00992209
1967	90832014.53312233
1968	97776015.6441625
1969	153328024.53248394
1970	256816041.09056658
1971	293285249.1849408
1972	222504577.6305059
1973	184913238.48126864
1974	227512179.43749228
1975	229089676.1719246
1976	253025011.1313346
1977	302372480.4399248
1978	378742462.17865074
1979	458302622.94575256
1980	587528653.5727167
1981	669720803.5460877
1982	780951658.7266982
1983	761708959.9184831
1984	609536231.6259938
1985	446759817.417331
1986	555067149.5366548
1987	607115989.7741929
1988	850005708.993568
1989	920706523.1946548
1990	808962008.410943
1991	1061029411.7647059
1992	947646692.9297118
1993	920686835.6500409
1994	1034761293.5323383
1995	905677817.6919622
1996	888231866.4643399
1997	754335401.9942821
1998	529647987.1801098
1999	420802481.29184717
2000	718930266.2037036
2001	651938891.0292505
2002	582606670.4410932
2003	641927230.7735599
2004	712137722.3205141