Year	Percent
2003-01-01	94.100
2004-01-01	95.300
2005-01-01	95.500
2006-01-01	95.300
2007-01-01	94.925
2008-01-01	93.700
2009-01-01	94.075
2010-01-01	94.850
2011-01-01	93.900
2012-01-01	94.650
2013-01-01	94.375
2014-01-01	94.950
2015-01-01	93.925
2016-01-01	93.075
2017-01-01	91.825