Year	constant 2015 US$
1960	3573654249.732404
1961	5433887499.007423
1962	6241491444.036562
1963	7365892118.732868
1964	8159898099.910961
1965	9893967078.150383
1966	8303186016.824348
1967	8246273773.641806
1968	7857707205.21489
1969	7301425102.01903
1970	8298401513.144998
1971	8202456126.732795
1972	7744637758.576984
1973	8043302361.363406
1974	7841842062.081483
1975	8379741187.959332
1976	9705853573.37399
1977	10395603093.215164
1978	10847125842.36739
1979	11120356806.777138
1980	12045815265.450397
1981	12019373357.900219
1982	13746895743.325512
1983	14480462393.30468
1984	15235435282.464714
1985	16796751695.80443
1986	17602593921.81846
1987	18358070169.244873
1988	18131425850.61865
1989	19466101038.97487
1990	20466099161.65056
1991	21120845519.77406
1992	23240711882.867424
1993	24246502423.3954
1994	24014823079.439102
1995	25049573539.20345
1996	26359820956.624725
1997	25353274940.443806
1998	24417240028.25413
1999	23318777747.36193
2000	24494550417.0957
2001	25691864755.630386
2002	25012652459.669254
2003	27341593216.938507
2004	29980942179.615345
2005	32814155943.71076
2006	39101459490.629456
2007	40426463912.82884
2008	41924718733.303246
2009	40190913311.125725
2010	37098424996.07089
2011	33900937342.787453
2012	35149643636.72536
2013	36009169868.61697
2014	37214133889.282036
2015	42297655639.13763
2016	46267155173.81065
2017	49843918040.97936
2018	54974559845.82769
2019	48892486342.34986
2020	45628208022.88127
2021	47300766314.75513
2022	48847639023.94423
2023	40872837767.1149