Year	constant 2010 US$
1970	92104672333.3848
1971	94046290903.4269
1972	99133658205.0385
1973	106001728889.219
1974	112509485926.798
1975	115696155930.562
1976	112770061670.641
1977	111991683511.233
1978	111625947406.022
1979	121489765421.589
1980	128303619201.343
1981	128267859741.024
1982	134131086808.939
1983	137887154566.927
1984	141427341138.541
1985	146631004827.234
1986	151552566106.74
1987	159111056478.684
1988	169938226408.707
1989	181393173531.003
1990	179769429147.614
1991	166881454763.632
1992	157667433821.348
1993	150528786002.042
1994	156070177927.084
1995	165363664336.744
1996	170646793492.813
1997	180311118750.229
1998	191066769759.613
1999	195524782479.425
2000	203113734613.863
2001	207120118594.085
2002	210110669016.347
2003	216806959067.258
2004	224566761956.555
2005	233756943258.626
2006	239195030076.079
2007	250198348458.786
2008	252702835105.596
2009	237120981377.557
2010	244663578656.026
2011	254445777690.05
2012	251396952591.712
2013	248740157132.431
2014	248517653823.777
2015	251574425468.852
2016	259784532673.282
2017	264899459923.404
2018	271916260692.733