Year	Percent
2003-01-01	26.475
2004-01-01	28.075
2005-01-01	23.900
2006-01-01	21.475
2007-01-01	20.175
2008-01-01	21.900
2009-01-01	26.925
2010-01-01	26.325
2011-01-01	26.950
2012-01-01	24.325
2013-01-01	22.000
2014-01-01	21.825
2015-01-01	19.850
2016-01-01	17.025
2017-01-01	17.750