Year	current US$
1970	334599899.3
1971	587537658.6304001
1972	646651661.6415
1973	935189091.4926001
1974	1240011441.3637
1975	1692151618.9535
1976	2221502659.2429
1977	3947908025.2319
1978	5882335517.788599
1979	6874192771.419498
1980	7932838862.510199
1981	9615141354.3339
1982	10233290908.758497
1983	10324812543.419601
1984	9522172384.425499
1985	9084898334.979801
1986	8629239227.1127
1987	9028645958.0799
1988	10738640143.652699
1989	12888552506.811
1990	15650237363.321133
1991	17713065048.08088
1992	18009671065.81406
1993	20093869456.95955
1994	22543267028.3609
1995	21306587966.139362
1996	20886296732.74559
1997	20709188761.095787
1998	20901906431.94179
1999	20191567256.556564
2000	23112950209.30167
2001	23315827434.683514
2002	23824714272.418846
2003	23075347537.45341
2004	23484074703.942787
2005	25061438761.87296
2006	28170039854.849403
2007	31168330453.938793
2008	40869143075.752525
2009	45182651454.0659
2010	49644404177.34888
2011	51971978879.19024
2012	56261303065.51716
2013	66996326178.9631
2014	66770733554.44564
2015	68957411756.59335
2016	68070710472.25909
2017	68793547276.61023
2018	67614686124.99112
2019	65480105831.39953
2020	65607170447.20955
2021	75179021216.56142
2022	80337921723.92165