Year	current US$
1970	155593.153895493
1971	148118.819530513
1972	155287.009396651
1973	147837.621061917
1974	7892645.29185702
1975	1000593.06067129
1976	272963.283453861
1977	357811.80665208
1978	423630.78841411
1979	22364576.6069915
1980	97791974.8033651
1981	55515043.0612871
1982	34276003.0205082
1983	39996425.881431
1984	28905863.3235784
1985	21086807.9216142
1986	23747443.9452202
1987	40615267.1640872
1988	38092643.5593705
1989	26359380.2358438
1990	28948677.0516985
1991	82599638.2225104
1992	71907160.1942389
1993	111779850.48186
1994	162353052.031785
1995	57415591.4609007
1996	136242918.906736
1997	92137809.7901278
1998	97285428.4331555
1999	76637128.5449105
2000	113776641.289865
2001	106486201.634671
2002	138414339.705234
2003	70555776.5860501
2004	61406758.4312131
2005	132680114.73834
2006	323777404.741302
2007	354711560.540943
2008	400768709.659334
2009	530074216.200133
2010	917932131.309225
2011	1539220714.78835
2012	1329197543.46159
2013	1424736535.16011
2014	1486692847.63952
2015	1012348097.64737
2016	543860849.072884
2017	811327997.416539
2018	1004254766.90127
2019	1077966440.24008
2020	1371882312.93933
2021	3297615304.86744