Year	Percent
2006-01-01	17.475
2007-01-01	17.575
2008-01-01	18.875
2009-01-01	22.525
2010-01-01	20.700
2011-01-01	18.925
2012-01-01	17.825
2013-01-01	19.700
2014-01-01	20.175
2015-01-01	22.175
2016-01-01	23.475
2017-01-01	25.600