Year	Percent
2005-01-01	7.550
2006-01-01	7.475
2007-01-01	6.700
2008-01-01	6.075
2009-01-01	6.800
2010-01-01	6.925
2011-01-01	6.850
2012-01-01	7.425
2013-01-01	7.800
2014-01-01	7.650
2015-01-01	7.350
2016-01-01	7.000
2017-01-01	6.450