Year	Percent
2005-01-01	16.775
2006-01-01	14.775
2007-01-01	12.625
2008-01-01	11.075
2009-01-01	12.450
2010-01-01	10.725
2011-01-01	9.200
2012-01-01	8.700
2013-01-01	8.450
2014-01-01	8.350
2015-01-01	7.925
2016-01-01	7.875
2017-01-01	7.625