Year	current US$
1960	2296703000
1961	2333717000
1962	2469221000
1963	2950909000
1964	3723053272.7
1965	4001494000
1966	4193790000
1967	4317071363.6
1968	4775891636.4
1969	5158114727.3
1970	5814774363.6
1971	5752655818.2
1972	6539847818.2
1973	9119993545.5
1974	12956755272.7
1975	14867963272.7
1976	14166142181.8
1977	17321357363.6
1978	18203803363.6
1979	20813770636.4
1980	26397143909
1981	29295187352.499996
1982	25589998625.28
1983	24207114278.039997
1984	23501268510.923004
1985	24104633097.48
1986	23126937762.690002
1987	25287804306.52
1988	25560965375.79
1989	27437028245.090004
1990	37046149620.159996
1991	35034530874.689995
1992	42673882184.69999
1993	43280097785.459984
1994	45836711549.56999
1995	52747817126.49
1996	55017619130.97001
1997	53212407587.610016
1998	58044106417
1999	58513401604.22
2000	73776173730
2001	77433997273
2002	77908519205
2003	93920992083
2004	121188013535
2005	119434896668
2006	138887787182
2007	213371002526
2008	265740811006
2009	233146995046
2010	267963048726
2011	260443465714
2012	268604059130
2013	297268512358
2014	316614283060
2015	295495155654
2016	280363079538
2017	320399536300
2018	339526700258
2019	340852056458
2020	320183394752