Year	current US$
1961	39424006.30784101
1962	42336006.773761086
1963	48048007.68768123
1964	55888008.94208143
1965	62048009.92768159
1966	65632010.50112168
1967	76720012.27520196
1968	91504014.64064234
1969	104272016.68352267
1970	119280019.08480304
1971	153382920.34736586
1972	268011434.19648665
1973	583002326.3278389
1974	687991232.5274953
1975	542353706.6055062
1976	631553328.868186
1977	737925317.9144007
1978	816870896.0750432
1979	1043193252.7533976
1980	1099343315.25935
1981	955321731.9719987
1982	872493764.0326194
1983	927469604.590586
1984	1006842008.0306983
1985	1020579538.0250602
1986	1153987795.1110444
1987	1357089279.7546864
1988	1581333551.697532
1989	1441551379.4295974
1990	1308008398.383123
1991	1600735294.1176472
1992	2094857972.2164629
1993	2618765433.3605886
1994	2945894925.3731346
1995	2829802499.6258044
1996	3062487177.54173
1997	2426717802.1058507
1998	2047871461.176128
1999	2194649625.8369436
2000	2330364836.5162034
2001	2012832113.3272088
2002	1827176463.019198
2003	2454905169.2602077
2004	2833996151.100351