Year	constant 2010 US$
1965	7547385271.52541
1966	8087863926.55763
1967	8527588863.54527
1968	8803600682.84468
1969	9110443037.76855
1970	9381687811.11888
1971	9743657486.09797
1972	10339729015.0707
1973	10842412881.208
1974	11420964151.8853
1975	11754859680.7674
1976	12348393129.4627
1977	13185621806.3029
1978	13887461579.1518
1979	13306928822.6854
1980	11740527960.8056
1981	10513532819.1455
1982	9850571147.79508
1983	10001778768.2664
1984	10135498124.0392
1985	10197993146.0328
1986	10217307633.4761
1987	10474128705.2734
1988	10670775937.5871
1989	10773449271.45
1990	11293974978.5816
1991	11462747481.7015
1992	12267208404.0216
1993	12981066064.6468
1994	13589850070.9183
1995	14233323978.0033
1996	14349707089.9392
1997	14799561738.3314
1998	15192367847.8621
1999	15520601488.6041
2000	15695372315.9154
2001	15833070782.4163
2002	16083369823.8473
2003	16334629226.212
2004	16480135824.9509
2005	16926330190.4564
2006	17661423001.8695
2007	17990027755.0041
2008	18372716135.3925
2009	17989940029.2908
2010	18447920000
2011	19151755722.8868
2012	19690779480.6879
2013	20130993997.5712
2014	20475489611.1644
2015	20965883598.5569
2016	21491594435.6106
2017	21987607218.6896
2018	22545571755.4981