Year	current US$
1960	34124914.68771328
1961	42874892.81276797
1962	55358194.93784598
1963	59208185.31287005
1964	38266571.00023916
1965	42294117.64705882
1966	42764705.88235294
1967	58705882.35294118
1968	58250000
1969	61400000
1970	59500000
1971	63050000
1972	52904761.9047619
1973	32285714.285714284
1974	122954545.45454544
1975	163458333.33333334
1976	56920000
1977	60800000
1978	103920000
1979	114440000
1980	123080000
1981	45535678.571428575
1982	36933333.333333336
1983	13166666.666666666
1984	88500026.31578948
1985	99767465.11627908
1986	167697651.16279072
1987	70612244.89795917
1988	69700000
1989	57132349.26470588
1990	55443015.18987342
1991	75921378.35420394
1992	105628243.00559556
1993	107639681.25960062
1994	77046826.46420823
1995	138763595.0704226
1996	181735902.4216524
1997	165345269.34501863
1998	121571894.57809313
1999	117799752.24440725
2000	65332626.212793946
2001	55135367.67157119
2002	63476896.12671439
2003	82799721.10137753
2004	109866547.6595691
2005	-2641651.0318949344