Year	Percent
2005-01-01	16.075
2006-01-01	15.550
2007-01-01	15.300
2008-01-01	14.950
2009-01-01	14.925
2010-01-01	14.775
2011-01-01	14.775
2012-01-01	14.400
2013-01-01	14.450
2014-01-01	14.600
2015-01-01	14.650
2016-01-01	14.550
2017-01-01	14.525