Year	constant 2015 US$
1975	54429027537.76828
1976	53847765757.56083
1977	55178495760.78954
1978	54939751132.2796
1979	57201720837.054214
1980	59667166077.49071
1981	60890054046.81863
1982	62399842521.429794
1983	57267511260.25156
1984	58137030049.31334
1985	61106416366.405754
1986	61495054639.51995
1987	63177797319.443726
1988	67391775663.00133
1989	71273410631.64452
1990	70433734921.14648
1991	68882573087.6174
1992	66839000457.786545
1993	68266720466.34743
1994	71312749235.20583
1995	72826607220.53023
1996	74480863325.46133
1997	75606761289.45709
1998	78115614644.1681
1999	79987589572.25743
2000	81013784523.77885
2001	82885081200.08264
2002	85169433213.78006
2003	88722794318.22209
2004	89996551171.46547
2005	89189431546.67334
2006	88669212427.16446
2007	90391971962.43507
2008	93992132440.07933
2009	89092441541.34117
2010	89501427368.02156
2011	89172475252.03485
2012	90187818174.98766
2013	87214362347.182
2014	86430981534.88376
2015	85098895028.08397
2016	83224207092.85248
2017	82748074339.40367
2018	84602414721.06897
2019	83757312996.2866
2020	81893477089.62375
2021	83058035405.39526
2022	85342387419.09268
2023	84435564781.82622