Year	current US$
1970	323499994.28
1971	426571981.55560005
1972	501780126.149
1973	512219645.742
1974	1916537587.9349003
1975	2584561914.9031386
1976	3260390407.6709003
1977	5891528520.948399
1978	8394671018.8654
1979	11028133359.287054
1980	15066289064.960546
1981	15075118083.529158
1982	16536449726.85146
1983	17807551903.031086
1984	17269390121.291233
1985	16288798240.487759
1986	15976064063.872173
1987	18783907078.183025
1988	18616073248.738884
1989	20553635091.90328
1990	23708335221.549137
1991	25684386063.83762
1992	30749892386.088337
1993	32126661715.467064
1994	35064233318.19646
1995	37733061757.697586
1996	39586987236.10642
1997	46274634023.48138
1998	46796594020.873695
1999	49985257968.23749
2000	54207814119.28877
2001	59658196248.89307
2002	67785657295.57085
2003	82714170029.9361
2004	89596313253.95732
2005	107129882896.75629
2006	127431257771.7607
2007	148494329848.98843
2008	174298723803.28296
2009	168508741000.2192
2010	186595990415.145
2011	210460958109.47818
2012	233908406090.1651
2013	241408285428.86484
2014	258628978371.45718
2015	261784213841.37216
2016	258056874647.53665
2017	282018957067.28613
2018	309101889880.8114
2019	329738041874.5684
2020	341924078425.0385
2021	385889412388.0335
2022	431992742350.6355