Year	current US$
1960	41200000
1961	1200000
1962	43300000
1963	50800000
1964	68100000
1965	71500000
1966	63500000
1967	68800000
1968	73700000
1969	89452000
1970	103907000
1971	128100000
1972	158203000
1973	219913000
1974	273168000
1975	268906000
1976	261028000.00000003
1977	306682000
1978	353357000
1979	470258000
1980	559306000
1981	631638000
1982	509470000
1983	484461000
1984	449835000
1985	441481000
1986	435707376.4
1987	373935695.5
1988	461568173.6
1989	631652546.7
1990	755161254.0999999
1991	652069520.7
1992	630313000
1993	719824228.6
1994	850115033.5999999
1995	891571230.9000001
1996	986615760
1997	964683013.1
1998	800991355.2
1999	991223761
2000	788490240
2001	750731330
2002	807726631
2003	1089402331
2004	1281689267
2005	1617681950
2006	1816052749
2007	1799626050
2008	2300061663
2009	1465444686
2010	1852900836
2011	2267564497
2012	2363323090
2013	2910966095
2014	3343184995
2015	2134267852.9999998
2016	2360596005
2017	2483105601
2018	2786333014
2019	2803577501
2020	1703578917