Year	constant 2010 US$
1970	17154.1428753485
1971	17939.0607485645
1972	19075.2012342947
1973	20218.6284423177
1974	19283.5064348044
1975	19758.1937890828
1976	20567.063534355
1977	21365.7965714958
1978	22571.0804771958
1979	22955.4556836716
1980	22854.213559945
1981	23304.2256994078
1982	23851.6179811467
1983	23942.4101432429
1984	24750.7906257208
1985	26389.8903325577
1986	27038.667177
1987	27764.5513784271
1988	29513.4712085889
1989	30815.2933288303
1990	32175.1664841151
1991	32810.1647838388
1992	32781.7721573372
1993	32767.7045565731
1994	32758.3496338207
1995	33748.6266897205
1996	34746.3942963256
1997	34737.3805706779
1998	34092.6324118432
1999	33824.524836061
2000	34678.4389743014
2001	34780.8456014889
2002	34535.9320657931
2003	35104.9881324363
2004	35931.0091815483
2005	36321.0257311484
2006	36505.9839623315
2007	36914.0575358967
2008	35262.8649265997
2009	33417.029488785
2010	35086.7823011901
2011	34798.741931946
2012	35487.0121577322
2013	36502.4979622721
2014	36693.7055319852
2015	38188.8770855475
2016	38765.9530341549
2017	39296.5953697001