Year	current US$
1970	73699435.8425589
1971	64101048.2145331
1972	65575702.3030271
1973	130439557.598
1974	159247654.722029
1975	92616919.3235275
1976	118552463.756386
1977	152200646.500442
1978	117889526.251501
1979	232292359.746293
1980	305073220.601785
1981	212682266.117493
1982	138173300.449824
1983	155659563.630953
1984	113237447.378348
1985	140940614.009231
1986	119176471.975517
1987	166869581.00789
1988	299174349.816672
1989	273398895.579618
1990	194066208.082466
1991	76316011.2007772
1992	37244706.4959577
1993	8045390.95191383
1994	41548365.3592203
1995	121045797.278245
1996	46180436.1329231
1997	142383473.005122
1998	53045391.4910231
1999	50631152.0832377
2000	102506586.859638
2001	10264170.2289624
2002	26160027.3433406
2003	22506322.0251722
2004	68553775.5724226
2005	86929081.5132126
2006	746875193.037524
2007	2957820258.73185
2008	701541274.252518
2009	492719538.734889
2010	2018199173.0665
2011	3506005417.25834
2012	1466649742.71526
2013	974096554.940292
2014	1957035494.34419
2015	689170195.61901
2016	410290262.509725
2017	878694330.816068
2018	966362586.652367
2019	998289091.04479
2020	1095167612.54831
2021	4606615728.71098