Year	constant 2010 US$
1970	11917618473.4485
1971	12939157713.569
1972	13563481318.1905
1973	14031036520.5698
1974	14173640690.7871
1975	15510967326.2091
1976	16342953737.3809
1977	17774676324.1589
1978	18962482958.9
1979	19193355574.937
1980	18192741806.3191
1981	21735989368.9009
1982	23813516356.4831
1983	25165522007.4583
1984	27258975987.5375
1985	26886948436.0883
1986	27147424780.4328
1987	27674808921.9211
1988	28308313204.0521
1989	28755303461.6016
1990	26862187036.5253
1991	24111749600.4948
1992	19808422988.3005
1993	17565432242.6479
1994	18560387441.5386
1995	18833405316.1566
1996	19571355743.9847
1997	20023935353.7369
1998	20400051741.7501
1999	21443025585.5712
2000	21891342887.3549
2001	22728046857.6673
2002	23212529196.7599
2003	24651768520.8092
2004	25031372251.7058
2005	25126047152.9468
2006	29827243681.4173
2007	30279694130.322
2008	29745097382.387
2009	30011814532.5406
2010	32369000000
2011	32822354574.8374
2012	33890514783.9272
2013	35639352659.5108
2014	37273237380.7909
2015	40014030565.4204
2016	41671164239.2562
2017	42230430709.0699