Year	constant 2010 US$
1981	1940.5095021749
1982	1675.58817733555
1983	1323.68596170217
1984	1065.68813202653
1985	1125.79851785016
1986	854.98079567173
1987	667.073702535025
1988	742.661892367284
1989	729.371840521558
1990	823.839836418199
1991	878.266100725797
1992	874.670043448166
1993	736.680309715858
1994	731.483636686407
1995	758.742058768384
1996	852.11902561945
1997	851.949193791504
1998	793.062566363435
1999	851.461596251652
2000	891.663027157721
2001	1008.89909004308
2002	1027.34894666777
2003	1118.83689191494
2004	1326.40598784328
2005	1356.94124608677
2006	1447.03844713244
2007	1720.0610328708
2008	1655.89946939625
2009	1831.02175131559
2010	1823.66132537102
2011	1669.63260842086
2012	1857.19518790209
2013	1807.33154883591
2014	1898.5230169381
2015	1792.08204069741
2016	1625.50220283646
2017	1537.34496885289