Year	constant 2015 US$
1975	34200212230.71551
1976	40473188161.779686
1977	44935175549.02261
1978	47743242506.89292
1979	52851800618.982864
1980	52954779382.11916
1981	50518758387.36172
1982	51223468770.620224
1983	52292271665.799355
1984	54542055820.31481
1985	55302437330.72666
1986	56953426008.60425
1987	60974099331.70463
1988	63797530116.76149
1989	65730607049.08151
1990	68979478122.29277
1991	69700537036.62949
1992	69376060185.94394
1993	71171540365.20207
1994	73043171935.89937
1995	76548488473.57332
1996	79508607412.80635
1997	83289197621.28812
1998	87159331630.77301
1999	89527426119.98257
2000	95813545785.67926
2001	98896279450.24998
2002	102283142464.6249
2003	106904519128.76814
2004	112183493272.21202
2005	117727530040.19235
2006	125258877889.40808
2007	133213367689.0349
2008	135954422626.15808
2009	131061582529.25674
2010	134617804304.816
2011	138661147032.78635
2012	140923432111.10266
2013	143321213416.8921
2014	146782687585.69043
2015	151721848514.7288
2016	157625661866.1982
2017	165133857936.02768
2018	171691128886.2137
2019	178668997722.5429
2020	168453969582.3052
2021	179548358716.01382
2022	187700156522.27496
2023	192355021783.172