Year	Percent
2000-01-01	10.175
2001-01-01	10.575
2002-01-01	11.525
2003-01-01	11.900
2004-01-01	11.650
2005-01-01	11.600
2006-01-01	7.350
2007-01-01	6.500
2008-01-01	7.225
2009-01-01	8.100
2010-01-01	8.200
2011-01-01	7.925
2012-01-01	7.925
2013-01-01	7.625
2014-01-01	7.800
2015-01-01	7.350
2016-01-01	6.300
2017-01-01	6.675