Year	2010 U.S. Dollars
1986-01-01	1073.700783991680
1987-01-01	1099.524031191680
1988-01-01	1084.881606221380
1989-01-01	1027.442533911380
1990-01-01	1141.661362004140
1991-01-01	903.823447305197
1992-01-01	927.381519243409
1993-01-01	959.582461410821
1994-01-01	966.226547397672
1995-01-01	973.545978523863
1996-01-01	1014.596583875460
1997-01-01	1065.219024365490
1998-01-01	1164.678346663840
1999-01-01	1218.849464621640
2000-01-01	1211.657398882390
2001-01-01	1215.425403588470
2002-01-01	1179.860507756460
2003-01-01	1096.265347608140
2004-01-01	1218.744811777780
2005-01-01	1268.411407909340
2006-01-01	1320.850159356020
2007-01-01	1358.096513843840
2008-01-01	1396.520187714690
2009-01-01	1427.112400569790
2010-01-01	1479.234067549390
2011-01-01	1365.420315494830
2012-01-01	1520.997267071230
2013-01-01	1539.469659833650
2014-01-01	1519.950584315720
2015-01-01	1517.199800560410
2016-01-01	1545.712409032190
2017-01-01	1561.953823954980