Year	constant 2010 US$
1970	18041.672450795
1971	18503.8861576931
1972	19309.0101967896
1973	20326.2677611174
1974	20312.2861727354
1975	20082.2074200679
1976	20865.6440812688
1977	21467.1459575959
1978	22202.4090652018
1979	22905.1254404472
1980	22993.7788617483
1981	23205.3161869941
1982	23094.3337915842
1983	23626.2137819377
1984	24552.0986874579
1985	25290.8699761819
1986	25907.8828161863
1987	26683.917722363
1988	27782.4412302975
1989	28649.0061907548
1990	29254.7687151876
1991	29425.1911143902
1992	29843.5527365415
1993	29970.642037244
1994	30646.110203677
1995	31268.7842089195
1996	32001.6295136196
1997	32877.0552194482
1998	33530.4709959698
1999	34470.3755323375
2000	35661.3523736951
2001	35947.4116725221
2002	36204.5706583396
2003	36780.7485777954
2004	37784.8434796396
2005	38584.7075284264
2006	39472.01600334
2007	40183.1200192076
2008	39928.9325753381
2009	38393.1092644593
2010	39365.5086073452
2011	39923.0178353196
2012	40192.3755462285
2013	40552.5150847637
2014	41116.4099815961
2015	41789.8691532695
2016	42221.5717342119
2017	43032.8153927627