Year	current US$
1963	384700000
1964	342700000
1965	334500000
1966	467900000
1967	434900000
1968	504900000
1969	684200000
1970	735400000
1972	737600000
1973	1000800000
1974	1381100000
1975	864600000
1976	809400000
1977	1109900000
1978	1065000000
1979	1245100000
1980	1513800000
1981	685200000
1982	585700000
1983	1130560898
1984	1003322762
1985	949850754.8
1986	1092755868
1987	983124701
1988	1120575154
1989	1538011451
1990	1353276438
1991	1599721944
1992	1485753255
1993	1015303552
1994	1276343878
1995	1533452301
1996	1463668438
1997	1278111596
1998	1028932234.0000001
1999	1095447505
2000	11242518000
2001	10369144000
2002	13160786000
2003	9446057000
2004	9860722000
2005	11058427000
2006	8358638999.999999
2007	10496045000
2008	12997125000
2009	7983384000
2010	11674079000
2011	14823637000
2012	9068868000
2013	15485875000
2014	16962100999.999998
2015	9979310000
2016	11764316000
2017	7885818000
2018	16023995187
2019	13183492964
2020	13788701759