Year	constant 2015 US$
1970	7017092348.192952
1971	6881582314.893906
1972	7524228107.1845665
1973	9128447846.022411
1974	10340509423.107088
1975	8107331717.777499
1976	7985509510.277369
1977	8081324988.232006
1978	8213413065.081325
1979	9242741330.915806
1980	8605570529.472267
1981	9550034693.770807
1982	9688966683.519583
1983	9612314022.210983
1984	10721032793.45874
1985	10884602590.700672
1986	11105662232.605167
1987	12067919594.13518
1988	12090795167.27976
1989	14001244094.213633
1990	14180328108.927975
1991	13655493993.967812
1992	14669214595.791414
1993	15714308129.500162
1994	17960702941.12519
1995	19091417214.38658
1996	20299254868.46005
1997	20488796527.13611
1998	21131930472.98593
1999	23085516832.58076
2000	23343685210.69056
2001	24341066615.526764
2002	26131908157.39465
2003	29572415837.09618
2004	33524685576.805725
2005	35157357694.52047
2006	34569778413.152245
2007	38215513520.110176
2008	37005715580.81556
2009	33542332327.96945
2010	37397870255.75759
2011	39856029568.15843
2012	40384784950.92313
2013	43667123206.47152
2014	46906978155.12822
2015	47973639707.80523
2016	50464478111.54309
2017	54111520772.67735
2018	56242883592.810196
2019	56825234052.197556
2020	47784751477.53621
2021	56067067417.49333
2022	58683395456.68509