Year	Percent
2006-01-01	7.450
2007-01-01	7.425
2008-01-01	8.275
2009-01-01	11.075
2010-01-01	9.375
2011-01-01	7.700
2012-01-01	7.200
2013-01-01	7.625
2014-01-01	8.750
2015-01-01	9.000
2016-01-01	9.700
2017-01-01	9.450