Year	Percent
2005-01-01	11.425
2006-01-01	10.350
2007-01-01	8.550
2008-01-01	7.450
2009-01-01	8.125
2010-01-01	7.375
2011-01-01	6.050
2012-01-01	5.600
2013-01-01	5.525
2014-01-01	5.300
2015-01-01	5.025
2016-01-01	4.475
2017-01-01	4.150