Year	current US$
1960	110900000
1961	103200000
1962	121600000
1963	127500000
1964	135200000
1965	146100000
1966	140900000
1967	145200000
1968	169600000
1969	182733000
1970	170330000
1971	213197000
1972	202206000
1973	202842000
1974	281030000
1975	365686000
1976	284832000
1977	336345000
1978	432003000
1979	640104000
1980	598189000
1981	543322000
1982	424052000
1983	386064000
1984	363934000
1985	400448000
1986	339427975.8
1987	364676522.3
1988	363558081.4
1989	385855950.09999996
1990	605096636
1991	427585323.9
1992	452990396.8
1993	440879776
1994	442389856.9
1995	524468396.4
1996	600801409.1999999
1997	571594748.2
1998	505190727.40000004
1999	378029363.7
2000	734077780
2001	868401353
2002	579300005
2003	1242680459
2004	2007553329
2005	1907829982
2006	3410594549
2007	2491901163
2008	4145011397.9999995
2009	3115367047
2010	2553182445
2011	2738948753
2012	2672261188
2013	2715380041
2014	3367895107
2015	2972413367
2016	2983364215
2017	3672402000
2018	3904622940
2019	3738017399
2020	3207914230