Year	Percent
2003-01-01	17.250
2004-01-01	18.800
2005-01-01	17.350
2006-01-01	16.625
2007-01-01	17.275
2008-01-01	18.300
2009-01-01	18.750
2010-01-01	18.175
2011-01-01	18.275
2012-01-01	17.375
2013-01-01	16.675
2014-01-01	15.325
2015-01-01	14.125
2016-01-01	13.675
2017-01-01	14.125