Year	Percent
2001-01-01	4.525
2002-01-01	4.625
2003-01-01	5.175
2004-01-01	6.125
2005-01-01	7.375
2006-01-01	7.275
2007-01-01	6.450
2008-01-01	6.575
2009-01-01	8.025
2010-01-01	8.525
2011-01-01	7.750
2012-01-01	7.700
2013-01-01	7.900
2014-01-01	7.700
2015-01-01	7.300
2016-01-01	6.575
2017-01-01	6.450