Year	constant 2010 US$
1960	138724956357.935
1961	154768215107.058
1962	169882248638.212
1963	183606877803.133
1964	172925249406.161
1965	158384159744.825
1966	165231140182.986
1967	184620676562.267
1968	204551700351.974
1969	220408936719.074
1970	227104204521.996
1971	231012224292.506
1972	239523912481.485
1973	256532807205.11
1974	263957034842.454
1975	247431713578.975
1976	248743489119.478
1977	256237194871.816
1978	259371556864.122
1979	276678388815.733
1980	295738862184.998
1981	291121178839.375
1982	281306741724.776
1983	277257293686.03
1984	288303638778.49
1985	291283769291.343
1986	299394345997.884
1987	313824367907.555
1988	336383329801.296
1989	351132903943.406
1990	366325313308.927
1991	371076917290.313
1992	365742045122.259
1993	324711880072.672
1994	327042572961.039
1995	350051343702.723
1996	357246412003.866
1997	363518091574.096
1998	377646257018.931
1999	393138182326.39
2000	419393440305.079
2001	431703170971.453
2002	450036119180.06
2003	448679511209.501
2004	458026504367.194
2005	465646315591.463
2006	480528210994.363
2007	488209078186.066
2008	473183217844.77
2009	426144826413.371
2010	423818077528.592
2011	415584263126.395
2012	377089866304.852
2013	352074269617.233
2014	344042297502.172
2015	351203857864.571
2016	363568154818.544
2017	379272782693.679
2018	392132944164.08