Year	current US$
1960	878600000
1961	927200000
1962	970500000
1963	1071000000
1964	1286200000
1965	1439300000
1966	1559900000
1967	1735800000
1968	1936600000
1969	2202800000
1970	2379570000
1971	2559300000
1972	3274790000
1973	4685470000
1974	6274160000
1975	7231300000
1976	7917470000
1977	8866070000
1978	10865940000
1979	13531690000
1980	18559530000
1981	18217490000
1982	17537280000
1983	17976750000
1984	18938460000
1985	20031050000
1986	18458820000
1987	21701930000
1988	22409600000
1989	26944101972
1990	33896554918
1991	33414508437.999996
1992	35104386551
1993	30786335445
1994	34314164868
1995	41056575835
1996	48654322103
1997	47669177521
1998	39536413907
1999	44695560179
2000	57600366743
2001	57632752217
2002	60510913967
2003	68316456093
2004	82370311573
2005	103752000000
2006	122106000000
2007	136377000000
2008	171764000000
2009	116778000000
2010	130669000000
2011	160305000000
2012	161026000000
2013	152606000000
2014	141564000000
2015	103319000000
2016	86975758434
2017	100261000000
2018	122052000000
2019	102827000000
2020	84910295426