Year	Percent
2005-01-01	13.625
2006-01-01	12.925
2007-01-01	12.750
2008-01-01	12.925
2009-01-01	12.850
2010-01-01	12.725
2011-01-01	12.300
2012-01-01	12.300
2013-01-01	12.300
2014-01-01	12.450
2015-01-01	12.450
2016-01-01	12.625
2017-01-01	12.700