Year	Percent
2005-01-01	7.925
2006-01-01	7.225
2007-01-01	6.250
2008-01-01	6.100
2009-01-01	7.900
2010-01-01	8.575
2011-01-01	8.675
2012-01-01	9.500
2013-01-01	9.975
2014-01-01	9.475
2015-01-01	8.725
2016-01-01	7.900
2017-01-01	7.050