Year	Percent
2003-01-01	8.225
2004-01-01	8.400
2005-01-01	8.400
2006-01-01	8.000
2007-01-01	7.200
2008-01-01	6.675
2009-01-01	7.725
2010-01-01	7.950
2011-01-01	8.125
2012-01-01	8.400
2013-01-01	8.700
2014-01-01	9.175
2015-01-01	9.025
2016-01-01	8.975
2017-01-01	8.825