Year	Percent
2005-01-01	15.550
2006-01-01	13.750
2007-01-01	11.925
2008-01-01	10.575
2009-01-01	11.250
2010-01-01	9.825
2011-01-01	8.525
2012-01-01	8.050
2013-01-01	7.800
2014-01-01	7.750
2015-01-01	7.250
2016-01-01	7.050
2017-01-01	6.775