Year	constant 2010 US$
1970	10115473599.0479
1971	12375358407.0501
1972	13979906765.8917
1973	15463163594.3006
1974	15106731390.2875
1975	15150983678.682
1976	13562122560.3274
1977	12031716901.0223
1978	12753661364.4114
1979	14324247073.0615
1980	13048142151.258
1981	13699883657.9544
1982	14503378733.4764
1983	16383525217.4727
1984	14446404589.4931
1985	13349519346.8798
1986	13360701181.4735
1987	15276397381.6353
1988	15055547496.3058
1989	14604522415.9028
1990	17958895766.888
1991	24865782119.4311
1992	26721397281.3405
1993	27385591585.9293
1994	31019921957.2209
1995	33518225529.7241
1996	36712589493.1097
1997	37156114309.403
1998	35850946342.2462
1999	36139976678.1003
2000	37150331146.9052
2001	36128997974.0437
2002	34106980763.4445
2003	32198337084.3614
2004	32704836245.2276
2005	33404078738.1568
2006	35929731062.6575
2007	39513168421.8268
2008	41339688337.0442
2009	40185265132.8238
2010	43855968092.8597
2011	49835102187.0967
2012	51884361462.7003
2013	53872715490.2079
2014	54323964107.8103
2015	54440630252.9436
2016	61400790243.3153
2017	63271457418.1427