Year	2010 U.S. Dollars
1997-01-01	7099.22813706612
1998-01-01	7256.02982130773
1999-01-01	7356.17847179684
2000-01-01	7561.15599670473
2001-01-01	7723.84470398696
2002-01-01	7933.74967149927
2003-01-01	8162.99510948531
2004-01-01	8686.96383975653
2005-01-01	8992.95167013203
2006-01-01	9705.90861189575
2007-01-01	10309.38866244720
2008-01-01	10718.94107803780
2009-01-01	10583.25951234730
2010-01-01	11095.11530713510
2011-01-01	11590.08754419760
2012-01-01	11741.01817512160
2013-01-01	11834.77188256910
2014-01-01	11920.42784705810
2015-01-01	11999.14728829880
2016-01-01	11979.52053066670
2017-01-01	12008.46508782800