Year	Percent
2003-01-01	30.400
2004-01-01	28.000
2005-01-01	28.800
2006-01-01	27.800
2007-01-01	26.500
2008-01-01	29.000
2009-01-01	32.250
2010-01-01	24.750
2011-01-01	24.875
2012-01-01	26.750
2013-01-01	25.925
2014-01-01	26.325
2015-01-01	35.150
2016-01-01	30.700
2017-01-01	30.475