Year	current US$
1970	84000000
1971	118000000
1972	132000000
1973	75000000
1974	118000000
1975	187000000
1976	366000000
1977	582000000
1978	771000000
1979	772000000
1980	951000000
1981	1004000000
1982	1054000000
1983	1153000000
1984	1413000000
1985	1543000000
1986	1306000000
1987	1329000000
1988	1020000000
1989	1136000000
1990	2551000000
1991	3394000000
1992	1783000000
1993	1033000000
1994	844000000
1995	837000000
1996	842000000
1997	564000000
1998	922670005.0048535
1999	860450015.2431428
2000	906450001.3589861
2001	830990021.1729116
2002	1167139973.1859572
2003	2972759968.5676417
2004	4161309963.0530972
2005	12019890034.198761
2006	5449809834.122658
2007	4633530101.537708
2008	3880279978.513723
2009	3154860052.585603
2010	2236469980.2398653
2011	2248820069.789886
2012	2064900034.1296206
2013	2473489963.35268
2014	2351479981.1244063
2015	2279719970.166683
2016	2328519998.0735784
2017	2539170034.855604
2018	3273580002.784734
2019	3351800055.861476
2020	3531750096.797949
2021	4144789980.649949
2022	2963729962.2297287