Year	current US$
1970	105503.604930601
1971	97178.8958727177
1972	113727.6217946
1973	194092.694881763
1974	144429.286493584
1975	41010.7103685474
1976	87896.7933253711
1977	199929.134921438
1978	114973.470411316
1979	533840.478128311
1980	795280.00365781
1981	258513.648187975
1982	50823.3454273083
1983	23734.2525719416
1984	6778040.69461845
1985	4336026.9516602
1986	5737332.02539571
1987	10520708.2210956
1988	7141021.96244582
1989	1211633.72487859
1990	919095.417649994
1991	8875220.27221717
1992	583426.863018531
1993	313780.317052392
1994	4916227.34685122
1995	32241931.6288211
1996	25595458.4606452
1997	6525767.6564154
1998	2894502.98439716
1999	2288037.3974739
2000	4199094.36882568
2001	1722169.64408331
2002	16408471.0103152
2003	23751186.5882214
2004	21712057.0572789
2005	26864075.8560837
2006	40066135.5369477
2007	25760473.6335356
2008	7901239.44234377
2009	61666437.2055577
2010	73608603.9861006
2011	115097140.428363
2012	123761523.484422
2013	120118384.808111
2014	69771579.4357509
2015	49148681.6302336
2016	63702099.1523964
2017	67982670.8725484
2018	0
2019	0
2020	0
2021	0