Year	current US$
1960	311461552.4067914
1961	330890639.9296858
1962	354195585.04878163
1963	368469401.4563951
1964	389154506.6281299
1965	413496540.415536
1966	429544066.5800068
1967	452006359.422906
1968	454660195.60931414
1969	473927700.66740966
1970	472395974.2902628
1971	504596774.71808845
1972	589275230.1318141
1973	650955197.3188398
1974	656490433.3305243
1975	872230330.9786764
1976	874235974.1679379
1977	941449817.1352684
1978	1119848850.8120286
1979	1002051757.8361702
1980	1038056270.044681
1981	873458086.9443922
1982	832288384.3601114
1983	826687138.5514925
1984	911618330.1343663
1985	1027594525.5251321
1986	1059020853.1356716
1987	1152744655.407351
1988	1469247180.2223537
1989	1424250575.3745296
1990	1720769010.350321
1991	1874628233.2277088
1992	1884677287.756261
1993	1423194656.664008
1994	1171969807.5104177
1995	1440773144.9001906
1996	1597137164.8063521
1997	1528104862.7646682
1998	1744116452.2303538
1999	1533049608.8105373
2000	1370995780.8598368
2001	1688295031.672089
2002	1936981283.910275
2003	2284427678.421873
2004	3727138752.814248
2005	5624396736.406056
2006	6216752621.198472
2007	7450472992.585951
2008	8724999838.060553
2009	8903735877.463036
2010	10312400156.734234
2011	11856127557.812763
2012	12067689658.178331
2013	12362321620.232697
2014	13336601200.431799
2015	10618477308.95203
2016	9911697343.60347
2017	9869508104.40075
2018	11075018517.446375
2019	11140998348.15701
2020	10561570203.570187
2021	11605895381.018993
2022	12212890619.370913
2023	12956602266.846476