Year	current US$
1961	241584038.65344617
1962	256816041.09056658
1963	269360043.0976069
1964	296464047.4342476
1965	338240054.1184087
1966	394576063.1321701
1967	443744182.9990693
1968	483952189.4323503
1969	539951862.392298
1970	605024208.8038734
1971	670965088.9598281
1972	760802549.3420068
1973	974416074.6697267
1974	1123350644.3546836
1975	1183280773.6162002
1976	1245952798.0958796
1977	1302488728.9489112
1978	1587050816.3769085
1979	1773077047.3630748
1980	2179758132.5471797
1981	2316012375.049594
1982	2147854041.800617
1983	2250205107.7204223
1984	2213338793.970744
1985	2193011494.3907614
1986	2331240953.9084263
1987	2703714840.5274153
1988	2978480092.912429
1989	3151850903.065567
1990	2700586651.762258
1991	3124054621.8487396
1992	3263736263.7362638
1993	3316434995.9116926
1994	3569485970.1492543
1995	2815144963.3288426
1996	3415332701.0622153
1997	3941164075.0296354
1998	2912991939.008401
1999	2552206459.2359195
2000	2154112738.7152777
2001	1970886376.4336307
2002	2276494081.012919
2003	2287763767.341081
2004	2621515535.2764072