Year	constant 2015 US$
1960	12821746305.805485
1961	13212484567.926975
1962	14213811900.807175
1963	14946490089.160276
1964	15801264566.939028
1965	16851569594.438189
1966	17975036264.51762
1967	19831123727.317543
1968	21858242130.585003
1969	23006029055.38474
1970	23929983542.04984
1971	24370689526.242073
1972	25913124607.56209
1973	28160703618.163116
1974	29526870656.18317
1975	31113354814.553524
1976	33537201868.454517
1977	36203462324.72261
1978	38495090412.37397
1979	41315522638.318245
1980	43563101644.72276
1981	44518909209.33224
1982	45520272413.95825
1983	48975470478.39826
1984	51149371310.90459
1985	51883139961.72264
1986	53726672720.54796
1987	58381741801.914024
1988	63491506395.11802
1989	70606508335.85106
1990	79699772948.32909
1991	84020671672.65628
1992	91328729092.38202
1993	99017516884.47398
1994	106816054568.25458
1995	115659648506.21463
1996	121481253487.9858
1997	119768155210.34396
1998	107552205907.88498
1999	111925302407.72574
2000	119801811200.21873
2001	126864868985.56342
2002	134758331668.21779
2003	144658102605.1414
2004	155403721586.8484
2005	161932018425.84085
2006	166467561729.67828
2007	168451250808.70746
2008	173224190539.87866
2009	171666530898.7658
2010	181024490756.79483
2011	184344389777.97272
2012	197861801940.7645
2013	199749558859.1281
2014	200814632453.91888
2015	206044362022.72986
2016	211980237902.79163
2017	218525992212.84134
2018	228521611380.2812
2019	237584388903.17398
2020	235728399546.3256
2021	237151393262.86462
2022	251760652738.07825
2023	270089718670.44284