Year	constant 2010 US$
1960	56488152206.7234
1961	62786319861.6199
1962	63749159946.9305
1963	70210810027.4557
1964	76009057613.0146
1965	83148330609.7444
1966	88219419688.5285
1967	93055111746.9691
1968	99256406058.3417
1969	109082522436.44
1970	117755967331.064
1971	126989421156.068
1972	139891738262.256
1973	151212307425.025
1974	141476895274.227
1975	150484458575.03
1976	160795500162.002
1977	165524498469.44
1978	177519832755.341
1979	183346176059.017
1980	184587669956.207
1981	181719692103.639
1982	179661448556.809
1983	177723579962.172
1984	181296855424.633
1985	185846602550.214
1986	186808656263.818
1987	182588903662.859
1988	190418063349.87
1989	197653949750.543
1990	197653949750.543
1991	203781222157.05
1992	205207690736.387
1993	201924367679.307
1994	205962855046.137
1995	210287497825.875
1996	216306196961.633
1997	226005797602.23
1998	234808508199.108
1999	242023226588.581
2000	251509982285.871
2001	261901399087.378
2002	272175455326.753
2003	287946747179.798
2004	302519710645.089
2005	304332233457.662
2006	321534411242.933
2007	332060633925.509
2008	330947657806.954
2009	316714480468.733
2010	299361576558.217
2011	272022398082.022
2012	252163419407.33
2013	243989731226.599
2014	245794711441.894
2015	244718538827.457
2016	244251243206.09
2017	247927466976.192
2018	252723303555.798