Year	constant 2010 US$
1975	5906.85019114269
1976	7425.15758703763
1977	9094.16075361537
1978	9644.81305296462
1979	10959.9387879973
1980	11462.5166702324
1981	11053.8286410648
1982	11740.0834268277
1983	12037.5883349585
1984	13477.3524306114
1985	13985.6015891394
1986	14078.3687207511
1987	15426.3059763269
1988	16765.7320194514
1989	18332.6512483131
1990	18659.4975317768
1991	17635.2394515549
1992	19487.1661949111
1993	17747.1834968471
1994	18511.0738269253
1995	18474.9467015518
1996	18409.1213591963
1997	18497.9115719828
1998	21733.1565884675
1999	20651.9207996432
2000	20988.2931429698
2001	22387.5583302212
2002	23169.9598664567
2003	24365.1109122201
2004	24950.2902094911
2005	25568.2926656969
2006	26139.7027692818
2007	26820.2984757878
2008	28286.8109439547
2009	26089.1517560883
2010	26205.3584018905
2011	26416.7674637231
2012	24384.3874674089
2013	22341.9540996094
2014	22339.171241398
2015	24248.4839821545
2016	24660.9001934466
2017	25199.0196197779