Year	constant 2015 US$
1970	4925695792.084375
1971	5202494849.01172
1972	5454501840.398047
1973	5768454045.98086
1974	6028009053.56211
1975	6345931096.267579
1976	6545168545.062892
1977	6694758620.541408
1978	6892239710.430861
1979	7135657962.530862
1980	7336327792.467972
1981	7463925103.428518
1982	7493336071.133205
1983	7530229593.772267
1984	7639087232.010158
1985	7845279107.603908
1986	8101506686.026174
1987	8472717523.355471
1988	8978899494.316408
1989	9412881023.432814
1990	9768475466.826563
1991	10454618209.621094
1992	10211065706.461329
1993	10420832432.588673
1994	10842225428.448048
1995	11045978594.708202
1996	11321452893.244139
1997	11685140123.662107
1998	12302363254.229685
1999	12917906582.280857
2000	13574137967.05703
2001	14024206323.574608
2002	14748214522.300388
2003	15106764708.034761
2004	15286128561.933197
2005	15210048153.51015
2006	15836958441.125776
2007	16212954607.55234
2008	16598764415.49648
2009	16983630027.9707
2010	17547208210.276558
2011	17836937530.431244
2012	18270728223.33046
2013	18410908519.983585
2014	18966205298.073814
2015	19543946412.428505
2016	20200225506.258972
2017	20801347385.7578
2018	21350149075.386314
2019	21891993009.67772
2020	20035755753.40428
2021	22313095313.15975
2022	22825378495.506237
2023	23745452045.673035