Year	constant 2021 US$
1960	4114919992.8715796
1961	4434550115.16809
1962	4145600055.9329996
1963	4634969994.597139
1964	3370010000.13947
1965	4224880070.2691097
1966	4396510026.49218
1967	4139550056.55438
1968	3576450058.16221
1969	4123390064.96966
1970	3746300040.45367
1971	3943820055.36556
1972	4039760010.3803
1973	3879409944.45235
1974	3715430068.16506
1975	5003599963.97793
1976	5675890094.81668
1977	6639030135.51049
1978	5134390085.57796
1979	6192600159.280001
1980	5180960019.84924
1981	5405949938.16316
1982	4623750057.19438
1983	5766849895.54435
1984	5444739953.89789
1985	6589949921.53347
1986	6507929912.86516
1987	4718600115.32903
1988	4183099995.7695603
1989	4265740092.29243
1990	7140959836.27438
1991	10908709941.75971
1992	8570289986.74638
1993	6816860076.21512
1994	7921580067.96241
1995	7608850180.29809
1996	8087110014.945271
1997	6098709948.0927
1998	7756920038.580891
1999	7101339951.69401
2000	7812569931.138307
2001	6828090053.8805895
2002	6132039880.506692
2003	6148759963.493799
2004	6915470105.849205
2005	472210006.892681
2006	535520006.38842607
2007	365499998.569489
2008	554980009.078979
2009	559770007.371902
2010	565139991.760254
2011	340179993.62945604
2012	264799998.164177
2013	197579999.20845002
2014	172910002.708435
2015	134080001.11579901
2016	269720006.942749
2017	215280000.68664598
2018	93999998.0926514
2019	156670000.076294
2020	198850004.196167
2021	127399995.803833