Year	Percent
2000-01-01	8.225
2001-01-01	8.700
2002-01-01	8.700
2003-01-01	8.725
2004-01-01	9.025
2005-01-01	8.925
2006-01-01	8.325
2007-01-01	8.400
2008-01-01	8.350
2009-01-01	8.375
2010-01-01	8.575
2011-01-01	8.350
2012-01-01	8.000
2013-01-01	7.975
2014-01-01	7.775
2015-01-01	8.075
2016-01-01	7.825
2017-01-01	7.650