Year	constant 2015 US$
1960	3371816976.148264
1961	3965468201.398367
1962	3999182982.769125
1963	4300752383.693474
1964	4524388119.0853615
1965	5397245171.720624
1966	5406563327.346994
1967	5693054258.332827
1968	6040536753.500129
1969	6308221952.081494
1970	6927794592.005508
1971	7006575362.578594
1972	7330169494.918181
1973	7633433106.10328
1974	8021407222.966336
1975	8195572022.980549
1976	8537124782.863479
1977	9701385975.576595
1978	10512065516.865814
1979	10763825140.468039
1980	10568482713.899712
1981	9666654668.192987
1982	8738735786.840128
1983	9228023668.787683
1984	9896897823.117147
1985	10322652825.76136
1986	10864800063.428589
1987	11270055123.587086
1988	11512327170.411215
1989	12102589975.319319
1990	12604076170.139069
1991	12484126093.801828
1992	13687447434.391169
1993	14987781099.779364
1994	15762416446.66593
1995	16111495309.623344
1996	16390561139.751953
1997	17178056998.612791
1998	17958001528.301765
1999	18271155123.98989
2000	18447495411.800125
2001	18881215033.915623
2002	19925445440.60143
2003	20895483361.25051
2004	21429204185.78879
2005	22461190313.12418
2006	23619918776.21146
2007	25432139111.43983
2008	26945808550.995983
2009	27019330627.93851
2010	28610891882.135498
2011	30567252577.920815
2012	32784884504.710762
2013	33410110631.221676
2014	35020636040.98157
2015	36658055559.748985
2016	38034066470.42347
2017	40146711594.941086
2018	40929227242.54172
2019	41621509849.70009
2020	38734256018.29508
2021	41966628401.16152
2022	43404413529.18131
2023	45751029489.25763