Year	Percent
2003-01-01	6.325
2004-01-01	6.575
2005-01-01	6.600
2006-01-01	6.525
2007-01-01	6.150
2008-01-01	5.450
2009-01-01	7.000
2010-01-01	7.300
2011-01-01	7.350
2012-01-01	8.125
2013-01-01	8.775
2014-01-01	9.175
2015-01-01	9.500
2016-01-01	8.850
2017-01-01	8.150