Year	current US$
1970	348273553.647589
1971	203891132.820297
1972	198674177.737048
1973	454697411.803413
1974	512969569.969498
1975	140810741.945248
1976	204151957.859988
1977	128391410.482818
1978	92014009.3284417
1979	245113966.744147
1980	272124749.088801
1981	123745004.276537
1982	47575595.6122821
1983	98454769.9478262
1984	41493532.8630002
1985	50737044.0588691
1986	558080.259978765
1987	62173651.051284
1988	289720194.597207
1989	372910563.141722
1990	274438224.155462
1991	11215468.4080604
1992	210299.072227956
1993	115868.947251414
1994	756316.474184484
1995	134037.623559672
1996	418165.619731063
1997	523071.318212353
1998	1084390.08010062
1999	648379.014992164
2000	10574835.7329031
2001	167930.518969408
2002	353492.398515945
2003	129193.865335321
2004	128683978.888852
2005	272021484.003263
2006	927462459.473125
2007	1131424889.14375
2008	945463297.737285
2009	845291882.072238
2010	1634138437.00983
2011	1710757767.98551
2012	1234208479.9841
2013	1189353382.52608
2014	786240997.66416
2015	389274334.227267
2016	389907078.894512
2017	808335388.319951
2018	1124054128.88333
2019	300831785.096958
2020	983626039.173305
2021	4251462464.12034