Year	current US$
1960	2487600000
1961	2403700000
1962	2176900000
1963	2767100000
1964	5594000000
1965	6160700000
1966	7383900000
1967	8367980000
1968	9886790000
1969	8819690000
1970	9705230000
1971	11762550000
1972	12459060000
1973	22941850000
1974	63967720000
1975	58918200000
1976	83582220000
1977	90959090000
1978	87264030000
1979	137510040000
1980	209935690000
1981	231235263327.15002
1982	185223980044.76
1983	151612448779.05
1984	140846266362.65002
1985	126337035071.26
1986	93559127497.97
1987	110474986598.48
1988	110834323366.1
1989	134035125531.23001
1990	171888184748.61
1991	155462164443.27002
1992	161217370468.40997
1993	151582864123.6
1994	158509429717.4
1995	180807791066.28
1996	211478683487.9
1997	221121770137.2
1998	171048044136.7
1999	215733022586.8
2000	369008954860
2001	338041904576
2002	338889988330
2003	421686637588
2004	534015276658
2005	685625401100
2006	811071276925
2007	935443376999
2008	1310955814205
2009	766627276457
2010	1073607395878
2011	1353090502680
2012	1525327295069
2013	1432980379738
2014	1341208877999
2015	859612090570
2016	764703877918
2017	872266289132
2018	1089629415469
2019	992534939892
2020	747276396221