Year	current US$
1970	58530090.3187738
1971	64435960.489748
1972	63377704.9557976
1973	69624888.7857582
1974	102904759.894141
1975	134044697.832839
1976	198008095.643384
1977	200856209.511834
1978	142457534.834678
1979	177190097.425815
1980	217067194.678005
1981	221737682.590493
1982	279642184.913823
1983	218048010.955538
1984	213504718.749242
1985	231797541.575498
1986	236804128.688153
1987	211821238.847063
1988	301644970.926538
1989	385300078.053183
1990	388307117.024605
1991	278918416.157781
1992	390003393.970097
1993	314238302.951587
1994	170315615.74573
1995	205220808.097099
1996	222946550.506524
1997	360474915.917675
1998	783571894.3297
1999	616558682.858825
2000	647351707.86134
2001	421747217.468081
2002	470839154.7903
2003	545624534.206524
2004	948802764.775499
2005	3445580701.02216
2006	5329782649.58813
2007	12232330342.0054
2008	15761950733.924
2009	7358435397.55368
2010	14501805939.4239
2011	13486398755.147
2012	5774793018.73979
2013	7259967566.08271
2014	4895796861.96493
2015	3056965911.28467
2016	4365678082.80751
2017	5610653127.18072
2018	7673256637.02716
2019	7995478500.35013
2020	11763068932.2017
2021	29569823471.8373