Year	current USD
1960	18667432.5100517
1961	20505456.6341183
1962	24842044.801838
1963	28144744.3997702
1964	41872487.076392904
1965	56375646.1803561
1966	50315910.396324
1967	52268811.028144695
1968	57725445.1464675
1969	87018954.62377939
1970	108271108.5583
1971	109994256.174612
1972	107983917.288914
1973	113153360.137852
1974	111430212.521539
1975	119471568.064331
1976	179207352.09649602
1977	216538485.838843
1978	175916407.914119
1979	239999813.592378
1980	228000000
1981	203987417.197213
1982	172214638.244251
1983	230769230.769231
1984	355384615.384615
1985	205293356.8285
1986	260000000
1987	310333333.33333296
1988	369333333.33333296
1990	1177777777.77778
1991	1365798114.9110699
1992	183718440.712828
1993	257981093.94026896
1994	226167004.478452
1995	138756425.66202
1996	106332797.671871
1997	97731859.3168924
1998	259957570.14372402
1999	429617897.44605
2000	587267572.329197
2001	388091317.423136
2002	484607263.03236496
2003	398110221.738581
2004	1240766949.07039
2005	1164995936.06069
2006	1647839194.3710701
2007	2427072594.74802
2008	3228000000
2009	3180483009.73066
2015	2279621639.5618997
2016	2748511976.24707
2017	4382998816.69717
2018	1047878719.9874101
2019	722256177.420763
2020	934311153.803525
2021	375212619.388697