Year	current US$
1960	844900000
1961	791500000
1962	785900000
1963	904800000
1964	1067400000.0000001
1965	995500000
1966	1076500000
1967	983600000
1968	997300000
1969	1196280000
1970	1211230000
1971	1341900000
1972	1787840000
1973	2591490000
1974	2432720000
1975	2155120000
1976	2797520000
1977	3194610000
1978	3738810000
1979	4695680000
1980	5411050000
1981	5616770000
1982	5657770000
1983	5416770000
1984	5393550000
1985	5733510000
1986	5939260000
1987	7231760000
1988	8839590000
1989	8867444987
1990	9446903527
1991	9601466331
1992	9370731000
1993	10481798312
1994	11978715772
1995	13679414057
1996	14362586069
1997	14015715022
1998	11489170234
1999	12258904821
2000	12742501618
2001	13478963658
2002	14186628547
2003	16326630762
2004	20342292341
2005	21765761712
2006	22440810143
2007	26999038960
2008	30545497080
2009	24916259168
2010	31349473866
2011	37504577202
2012	37254085782
2013	39584044189
2014	41825647971
2015	34351105818.000004
2016	33681747337
2017	38184273597
2018	40189082397
2019	40048499899
2020	38825138620