Year	Percent
2005-01-01	8.875
2006-01-01	8.100
2007-01-01	7.075
2008-01-01	6.725
2009-01-01	8.000
2010-01-01	8.725
2011-01-01	8.950
2012-01-01	9.775
2013-01-01	10.225
2014-01-01	9.800
2015-01-01	9.075
2016-01-01	8.375
2017-01-01	7.525