Year	Percent
2002-01-01	3.575
2003-01-01	3.725
2004-01-01	5.025
2005-01-01	5.175
2006-01-01	5.175
2007-01-01	5.825
2008-01-01	5.775
2009-01-01	6.925
2010-01-01	7.700
2011-01-01	9.550
2012-01-01	10.700
2013-01-01	12.575
2014-01-01	11.425
2015-01-01	10.725
2016-01-01	9.050
2017-01-01	8.050