Year	constant 2015 US$
1960	3176307002.0099196
1961	3670902180.47016
1962	3856165798.164589
1963	4081248519.2096305
1964	4592190487.466438
1965	4903198642.057539
1966	4909485868.902373
1967	5079240993.71288
1968	5404081047.362615
1969	5702095599.807725
1970	5985439956.281558
1971	6397882037.30264
1972	6821221978.188101
1973	7231568316.927571
1974	7666225266.133732
1975	8515000890.186264
1976	8924508932.01309
1977	10211294692.92236
1978	8916964259.799288
1979	8160401296.137649
1980	10137105416.153322
1981	9948907759.264637
1982	10878579035.387362
1983	9991241753.353184
1984	9334436122.296236
1985	9746039906.404673
1986	10521045402.14449
1987	11123361733.879543
1988	9369644592.6273
1989	7582814723.325601
1990	6810743266.780039
1991	6944451624.346833
1992	7141032250.361962
1993	7361504338.38746
1994	7999867437.366227
1995	8679726233.520897
1996	9061570477.230455
1997	9750231390.967892
1998	9994175792.547434
1999	10344164753.576502
2000	10664813322.663013
2001	10579307037.573277
2002	10579307037.573277
2003	10991749118.594358
2004	11442333709.140764
2005	12483498474.645203
2006	13432031431.302427
2007	14009618004.114471
2008	14688219354.900173
2009	16460798176.686916
2010	17102933611.772585
2011	18365827910.671486
2012	19885241064.839596
2013	21384535093.10424
2014	22777365413.46304
2015	24609044167.591217
2016	25881998029.441853
2017	26724486426.649548
2018	27450870701.455986
2019	28435031276.9006
2020	30864415729.744293
2021	32422390541.894047
2022	32357841679.620422
2023	33386012842.97887