Year	current US$
1960	618000000
1961	766600000
1962	632400000
1963	502200000
1964	653500000
1965	659000000
1966	504700000
1967	637500000
1968	707800000
1969	771500000
1970	984600000
1971	1096300000
1972	1556900000
1973	2709300000
1974	3841700000
1975	4769400000
1976	5673700000
1977	6228500000
1978	6690200000
1979	7225600000
1980	10837300000
1981	13269500000
1982	16858800000
1983	16351500000
1984	13880200000
1985	10274800000
1986	10724500000
1987	12855400000
1988	13488900000
1989	16469978153
1990	22005034207
1991	25928475956
1992	27279710962
1993	28327906434
1994	32013048000
1995	40629167000
1996	42902192058
1997	41698433128
1998	27349593319
1999	24003282212
2000	33499690093.999996
2001	31063685781
2002	31284276268
2003	32547335867
2004	46440497342
2005	57698433173
2006	60996316479
2007	74191815988
2008	128552000000
2009	96158210427
2010	135663000000
2011	177436000000
2012	191691000000
2013	186628000000
2014	178179000000
2015	142696000000
2016	135544000000
2017	156585000000
2018	192250000000
2019	174280000000
2020	144052000000