Year	current US$
1960	643700000
1961	633800000
1962	728100000
1963	880400000
1964	983800000
1965	1035000000
1966	899200000
1967	1098000000
1968	1048500000
1969	1007270000
1970	1101940000
1971	915960000
1972	666430000
1973	973610000
1974	1739910000
1975	2129290000
1976	2132650000
1977	2451880000
1978	3285270000
1979	4060730000
1980	5349540000
1981	5631600000
1982	5449980000
1983	5326060000
1984	5853800000
1985	5888530000
1986	5367240000
1987	5818740000
1988	6588440000
1989	7107042632
1990	7382994271
1991	8431484302.000001
1992	9375038865
1993	9492426589
1994	8884515841
1995	11460540302
1996	12149836723
1997	11611888416
1998	9308164656
1999	10297654327
2000	10721945506
2001	10165520155
2002	11238129959
2003	13048547930
2004	17757673954
2005	25410792603
2006	29825753656
2007	32593936237
2008	42326566967
2009	31645036424
2010	37537025364
2011	43578259281
2012	43813262516
2013	43775183218
2014	47544888967
2015	43989644700
2016	46998269095
2017	57286155555
2018	60121163779
2019	50006637594
2020	45787704424