Year	Percent
2005-01-01	9.050
2006-01-01	8.350
2007-01-01	7.475
2008-01-01	7.525
2009-01-01	9.600
2010-01-01	10.200
2011-01-01	10.250
2012-01-01	11.450
2013-01-01	12.100
2014-01-01	11.775
2015-01-01	11.000
2016-01-01	10.175
2017-01-01	9.175