Year	current US$
1970	38914928.1937548
1971	36365703.3463142
1972	38516050.4310726
1973	127144177.571905
1974	195680032.434866
1975	64544283.3012357
1976	84987103.7682138
1977	76393607.0897226
1978	72255075.539909
1979	162519754.734979
1980	223704719.132215
1981	85833705.631774
1982	69608715.1001142
1983	93202511.6802442
1984	68279151.1455949
1985	75707525.3876322
1986	44155733.3283351
1987	98705183.3592997
1988	358530302.948273
1989	285691196.654741
1990	212809890.23929
1991	118645903.467296
1992	127753882.972339
1993	87247753.0425789
1994	124128933.610874
1995	186604333.313744
1996	109710403.302657
1997	149479177.495115
1998	30355758.1593036
1999	40571200.3098354
2000	84041415.9011753
2001	20774691.1032971
2002	35043313.7202021
2003	64400076.8819568
2004	286905291.113475
2005	326268438.913092
2006	1005824766.93784
2007	954523248.517689
2008	484947782.025259
2009	499531321.240357
2010	4470587026.73348
2011	6780557385.65212
2012	1119850395.46115
2013	817896620.481886
2014	698400449.819939
2015	469372030.834965
2016	437214579.948719
2017	709787470.48123
2018	910138207.507172
2019	506065594.962513
2020	344209288.479291
2021	1132300946.66434