Year	current US$
1960	384647342.5258199
1961	415052186.92276335
1962	453169027.5746901
1963	475726207.35013723
1964	504999659.54797894
1965	606565847.4149127
1966	622966817.393095
1967	594031490.6441536
1968	565207832.0990311
1969	576777480.1112726
1970	577127733.5394351
1971	604877799.9057418
1972	638078134.5848247
1973	801215158.5660396
1974	959224028.8418503
1975	908377491.5089105
1976	903624380.0358077
1977	977604075.5864363
1978	1254478793.5044098
1979	1499398916.3603868
1980	1882638011.0465493
1981	1754477550.3040497
1982	1679150740.6281767
1983	1484067558.5687726
1984	1325171396.9732642
1985	1275761984.412679
1986	1480910141.2258914
1987	1819988233.5780494
1988	1612935503.5693533
1989	1685108007.1744463
1990	2573137542.156204
1991	2450164916.3792725
1992	2599910172.8882036
1993	2328788794.510874
1994	1449844627.2147524
1995	1713272389.8442185
1996	1719323322.3425407
1997	1647331924.074303
1998	1916665326.0768645
1999	1849738046.7403471
2000	1618078897.6128325
2001	1791494851.0084944
2002	2051202369.1022978
2003	2527481523.4306626
2004	2875971115.999462
2005	3173955141.9879518
2006	3428198048.8610225
2007	4197931528.718585
2008	5091096849.697374
2009	5347752411.370635
2010	5610148926.706834
2011	6287373206.89822
2012	6454548392.267731
2013	6884251399.83504
2014	7039261934.8050995
2015	6520758998.9195385
2016	7209568879.970873
2017	7996601151.02425
2018	9000813042.001612
2019	8865852054.05586
2020	9791000749.227737
2021	10745413992.111439