Year	constant 2010 US$
1970	7169186928.18818
1971	7522948911.89004
1972	7874244155.0421
1973	8281380974.1015
1974	8638620763.98308
1975	9052240375.87104
1976	9328910260.82223
1977	9556493267.0355
1978	9811467887.41094
1979	10127096115.0707
1980	10418510155.2813
1981	10591224242.9079
1982	10660527798.7586
1983	10749159210.4695
1984	10923651735.2559
1985	11221486717.673
1986	11671522439.5257
1987	12350800671.4354
1988	13036100399.1356
1989	13772374045.5389
1990	14388681854.463
1991	15286792885.0882
1992	15143533864.9267
1993	15582413297.372
1994	16081182276.6328
1995	17144085217.557
1996	17678720935.5182
1997	18143468099.3463
1998	18574275562.0579
1999	19750798890.4491
2000	20570373934.7814
2001	21573336735.8759
2002	22555352439.7701
2003	23191182132.7371
2004	23577111472.748
2005	23763630168.9248
2006	24352299755.8529
2007	25025741778.9536
2008	25368492232.8411
2009	25870227922.8839
2010	26196346254.4496
2011	26526267008.6292
2012	27353185986.5716
2013	28070119459.9674
2014	29000069389.6365
2015	29897815938.6514
2016	30488664203.8101
2017	31414156120.7595
2018	32711367627.7284