Year	constant 2010 US$
1960	18389093428.0493
1961	18612613607.3006
1962	19445660966.4215
1963	20621396500.8503
1964	23039974947.6724
1965	27714524526.249
1966	29896177396.6974
1967	33277909635.6643
1968	37299674741.4242
1969	41614928692.6357
1970	45552302092.9054
1971	52341613174.0861
1972	63725435155.7676
1973	65315613381.3524
1974	91022870069.5859
1975	107280418067.541
1976	121558251408.21
1977	127389786998.16
1978	131452249660.403
1979	135829855934.053
1980	130991924836.415
1981	117432936869.374
1982	114509597892.09
1983	122743506423.47
1984	120300489697.423
1985	123723494308.644
1986	105749025797.811
1987	97164961390.9185
1988	87009761632.7208
1989	92589781488.3602
1990	101820879764.148
1991	111931277592.087
1992	116148614014.318
1993	117155934509.083
1994	119833581093.954
1995	123239110723.708
1996	129946323276.583
1997	136124817966.417
1998	140282282681.484
1999	144048986170.226
2000	147843418262.776
2001	154901827755.316
2002	164777463999.418
2003	176424191762.232
2004	189060967458.022
2005	202718619393.703
2006	217197762642.756
2007	236976802115.868
2008	233935943927.382
2009	236470644743.068
2010	249074298198.578
2011	259092510258.005
2012	262935835684.634
2013	268916019612.237
2014	272751386927.238
2015	266490011057.16
2016	276015879163.842
2017	288146341015.027