Year	constant 2015 US$
1970	7062314893.913774
1971	8035179832.284388
1972	9352932233.825558
1973	10192912010.320963
1974	11069913352.74325
1975	10643459614.010008
1976	10012532296.588156
1977	8844465907.70411
1978	8743842117.191723
1979	8091373280.566259
1980	8554213288.237244
1981	10135823846.301367
1982	10695484928.258862
1983	11771511358.28728
1984	12651200334.73387
1985	13747967712.128874
1986	13753823462.75214
1987	14495849648.703777
1988	14260215833.609371
1989	14917355602.433792
1990	14419012883.767149
1991	12216351749.507486
1992	12547116930.211472
1993	14704406980.595892
1994	16952438501.368568
1995	18552843668.822674
1996	19441957495.77224
1997	19792480343.102215
1998	19121437263.550617
1999	21138225561.812443
2000	21106759183.38883
2001	22933284750.431484
2002	24767127739.325996
2003	28344805174.427723
2004	30662355340.922955
2005	32420824630.83387
2006	31882234348.576508
2007	34360776164.159065
2008	31896137659.303684
2009	28684351540.29882
2010	29768850921.389843
2011	31555859760.456074
2012	33276276783.068043
2013	36437571087.36205
2014	39387379835.771194
2015	40714098920.831955
2016	41668341498.282745
2017	44465939782.77167
2018	46787149008.87394
2019	48064107114.83813
2020	47215973081.81802
2021	52047191199.2887
2022	53129495284.087944