Year	Percent
2003-01-01	93.850
2004-01-01	93.925
2005-01-01	93.950
2006-01-01	94.075
2007-01-01	94.150
2008-01-01	94.425
2009-01-01	94.300
2010-01-01	94.200
2011-01-01	93.700
2012-01-01	93.550
2013-01-01	93.325
2014-01-01	92.900
2015-01-01	92.400
2016-01-01	92.425
2017-01-01	92.575