Year	current US$
1960	537000000
1961	487500000
1962	553200000
1963	725700000
1964	735500000
1965	763100000
1966	838100000
1967	809100000
1968	845500000
1969	823900000
1970	1040500000
1971	1117800000
1972	1067800000
1973	1886500000
1974	2672000000
1975	2273500000
1976	2575000000
1977	3151740000
1978	3424990000
1979	4600910000
1980	5787010000
1981	5720720000
1982	5019820000
1983	4935270000
1984	5342560000
1985	4614310000
1986	4807700000
1987	5696410000
1988	7043800000
1989	7754082792
1990	8195254548.000001
1991	8845083048
1992	9834300768
1993	11267414000
1994	13441282000
1995	17379046000
1996	20562000000
1997	25238282000
1998	29504734898
1999	35486620271
2000	38216219599
2001	32150199953
2002	35208128364
2003	36231090382
2004	39680271765
2005	41221239276
2006	46985502871
2007	50465723917
2008	49077540451
2009	39226611720
2010	51431684232
2011	48042190463
2012	51991862753
2013	53978267999
2014	61798409643
2015	58648385905
2016	56125868348
2017	63130626512
2018	67483165955.00001
2019	70875127463
2020	63636985845