Year	current US$
1960	70700000
1961	73800000
1962	89400000
1963	77200000
1964	86400000
1965	85900000
1966	88700000
1967	93200000
1968	102000000
1969	99206000
1970	128225000
1971	134653000
1972	151645000
1973	185412000
1974	224334000
1975	263002000
1976	259786999.99999997
1977	311875000
1978	362929000
1979	381991000
1980	387735000
1981	308216000
1982	307068000
1983	288737000
1984	323709000
1985	265406999.99999997
1986	304921000
1987	313129278.8
1988	257154634.10000002
1989	302337072.70000005
1990	349552163.59999996
1991	288963369.6
1992	254859072.6
1993	236698735.1
1994	295732915.1
1995	320675367
1996	299341829.7
1997	223754186.1
1998	234092584.20000002
1999	220490119.60000002
2000	824208166
2001	925589473
2002	667633361
2003	1000438180
2004	943887322
2005	848000718
2006	1115539337
2007	1319547498
2008	1348104855
2009	1056497640.9999999
2010	1046757304
2011	1200742036
2012	1167463811
2013	1575278419
2014	2154819178
2015	2079001262.0000002
2016	2186970688
2017	2774251273
2018	2972100048
2019	2555649713
2020	1948720566