Year	constant 2010 US$
1970	59510597457.2557
1971	66545662304.7212
1972	69624107228.9266
1973	77596210855.521
1974	85924390102.9
1975	86060080699.5062
1976	89517528091.3737
1977	91579842389.213
1978	90700886377.0564
1979	91803914213.7503
1980	96171285972.6232
1981	99325099786.9192
1982	101881631017.163
1983	101627753682.45
1984	99247655258.8207
1985	101087482670.87
1986	107124014387.277
1987	112440000395.027
1988	120551185939.49
1989	125035022684.677
1990	132439700227.737
1991	139639979344.461
1992	144407078164.888
1993	145570263214.58
1994	148120228213.254
1995	149134590070.759
1996	154171769367.14
1997	159056233517.626
1998	167347309411.19
1999	175439989832.265
2000	182194776400.349
2001	185004218003.01
2002	187989725281.828
2003	188284323503.316
2004	193263576182.368
2005	196831524147.453
2006	198984035459.153
2007	203123098427.211
2008	205467992721.695
2009	203010058932.311
2010	206079215005.592
2011	198548676214.47
2012	188659238532.221
2013	186050035206.237
2014	189127300465.579
2015	193025297256.688
2016	196969268926.391
2017	200602168785.891
2018	205019549487.809