Year	Percent
2003-01-01	27.850
2004-01-01	27.350
2005-01-01	26.925
2006-01-01	26.450
2007-01-01	28.125
2008-01-01	28.475
2009-01-01	28.325
2010-01-01	27.075
2011-01-01	26.725
2012-01-01	26.125
2013-01-01	25.650
2014-01-01	25.475
2015-01-01	25.975
2016-01-01	25.825
2017-01-01	26.300