Year	Percent
2003-01-01	27.000
2004-01-01	23.300
2005-01-01	24.900
2006-01-01	23.300
2007-01-01	22.475
2008-01-01	23.825
2009-01-01	26.700
2010-01-01	21.200
2011-01-01	20.700
2012-01-01	21.725
2013-01-01	21.925
2014-01-01	20.350
2015-01-01	29.050
2016-01-01	24.925
2017-01-01	25.800