Year	constant 2010 US$
1970	10293896321.8529
1971	12608582887.0212
1972	14142840216.9044
1973	14924417708.0617
1974	14370959795.131
1975	15067566592.4485
1976	13260564593.2374
1977	12298842196.0564
1978	12617749704.1301
1979	14202106780.6016
1980	12329805254.1138
1981	11810815343.7774
1982	13632388234.7435
1983	15181087624.2821
1984	14116107462.6067
1985	12390957334.5636
1986	13297681557.1112
1987	14098776563.0955
1988	14351765978.6439
1989	14068990244.6526
1990	17718887770.0439
1991	25301619695.2373
1992	26952428192.2184
1993	28785882735.2416
1994	31220592943.2532
1995	33503683576.3812
1996	36373518678.2474
1997	36601275108.8199
1998	35618889561.9789
1999	37848735335.2189
2000	38522465515.2816
2001	37547627571.7275
2002	34088589947.7798
2003	32193325710.9234
2004	33160155630.8881
2005	35315953730.6347
2006	37891016495.1624
2007	40289157884.1795
2008	41028065071.3097
2009	39303027754.9328
2010	43111723052.4408
2011	49503350704.4043
2012	52437795465.3347
2013	52851639821.074
2014	55047181486.9048
2015	56841086554.4701
2016	62580174245.6154
2017	64781175295.3684