Year	current US$
1960	39500000
1961	200000
1962	39700000
1963	55500000
1964	78721000
1965	68524000
1966	63783000
1967	65448000
1968	66724000
1969	78447000
1970	88663000
1971	90849000
1972	94476000
1973	119612000
1974	196282000
1975	207433000
1976	186906000
1977	271142000
1978	300242000
1979	409766000
1980	500053000
1981	437872000
1982	388406000
1983	350960421.9
1984	425036919.38
1985	380848647.29
1986	383383903.02
1987	438083535.41
1988	515143586.38
1989	504325988.34
1990	622810030.38
1991	583350115.7190001
1992	606844929.875
1993	685526380.774
1994	755058814.8620002
1995	928276775.8100001
1996	1112245207.21
1997	945704899.17
1998	992599680.6969999
1999	1050102297.2199999
2000	886363182
2001	889437453
2002	1006253883
2003	1053308957
2004	1498697228
2005	2237115014
2006	1604178299
2007	2595362640
2008	2654273133
2009	1427551274
2010	1406259778
2011	2065758728
2012	2099434676
2013	2114244880
2014	2334911632
2015	1963276203
2016	1820623205
2017	2391950997
2018	2523274046
2019	2869102041
2020	2726735520