Year	constant 2010 US$
1980	667.792318449238
1981	664.090552068059
1982	632.781934685553
1983	618.1118613717
1984	593.80358222699
1985	571.354213135352
1986	615.544239952615
1987	622.273621750536
1988	599.685429791459
1989	665.911722945342
1990	630.158380513317
1991	625.270867434185
1992	536.924721029808
1993	556.6844122776
1994	527.993425977661
1995	598.338429527829
1996	643.76514018617
1997	602.34082703787
1998	656.402956266349
1999	711.845791355048
2000	674.727627499567
2001	641.312610646268
2002	706.781765967607
2003	741.130548511462
2004	751.393497322389
2005	751.851665668341
2006	783.811540075025
2007	722.26458144651
2008	693.482956750953
2009	813.719448101718
2010	836.635449255316
2011	905.633245274791
2012	826.875700948314
2013	816.84441464097
2014	727.820067790037
2015	712.028470792619
2016	723.677139073775
2017	649.64871090164