Year	current US$
1970	8894434525.73077
1971	10287347357.9435
1972	12325978226.7067
1973	16376361407.2448
1974	18305632464.6663
1975	20197331572.462
1976	21413682866.242
1977	24700982589.0676
1978	30567710047.7118
1979	36275595026.1445
1980	39119989335.0549
1981	32895978995.2401
1982	31885608859.5148
1983	31742703274.6074
1984	29982561036.3549
1985	30291758455.3547
1986	43159355194.0915
1987	53473593241.5668
1988	58006050091.3241
1989	57984237034.2244
1990	73425737348.9891
1991	76908942974.6611
1992	87655717863.494
1993	85071132671.2411
1994	90385268953.8389
1995	108454581684.182
1996	104899339745.256
1997	95003185954.2804
1998	90909005203.5213
1999	89112532068.21
2000	79277035282.1621
2001	79164305795.6842
2002	84351151916.2194
2003	101682954290.002
2004	116394359393.176
2005	118128702727.484
2006	125468553610.194
2007	145615903112.571
2008	160684833300.654
2009	162200141895.376
2010	162295973673.6
2011	174577759749.777
2012	168669762608.693
2013	170591746914.135
2014	177782813657.86
2015	151899047477.783
2016	156629619368.106
2017	167332644524.738
2018	182896971900.984
2019	182203069876.227
2020	181528284214.998
2021	199971924719.607