Year	Percent
2003-01-01	15.175
2004-01-01	15.925
2005-01-01	14.475
2006-01-01	14.425
2007-01-01	14.575
2008-01-01	15.750
2009-01-01	16.725
2010-01-01	16.500
2011-01-01	16.225
2012-01-01	17.400
2013-01-01	16.150
2014-01-01	12.575
2015-01-01	12.450
2016-01-01	13.625
2017-01-01	14.600