Year	current US$
1962	22200000
1963	25200000
1964	28500000
1965	33900000
1966	38000000
1967	45700000
1968	47740000
1969	50256000
1970	52828000
1971	61085000
1972	72081000
1973	95393000
1974	105474000
1975	127769000
1976	128970000
1977	159928000
1978	180278000
1979	274390000
1980	340723000
1981	294825000
1982	273322000
1983	258463000.00000003
1984	279407000
1985	301246000
1986	373590000
1987	509844000
1988	510242469.09999996
1989	607267433
1990	435038000
1991	402537000
1992	453079000
1993	345966000
1994	391600377
1995	421109427
1996	466375213
1997	374074662
1998	397305453
1999	443124287.5
2000	364494854
2001	343916294
2002	417475374
2003	525694619
2004	593034362
2005	699513056
2006	682223348
2007	773091037
2008	926858106
2009	777222144
2010	846978884
2011	1002504888
2012	860550333
2013	955376972
2014	863725604
2015	666853685
2016	733570492
2017	760311988
2018	829152516
2019	1141457180
2020	853645365