Year	Percent
2005-01-01	33.850
2006-01-01	33.675
2007-01-01	33.750
2008-01-01	33.700
2009-01-01	33.800
2010-01-01	33.925
2011-01-01	33.450
2012-01-01	33.550
2013-01-01	33.600
2014-01-01	33.675
2015-01-01	34.150
2016-01-01	33.425
2017-01-01	33.300