Year	Percent
2000-01-01	15.150
2001-01-01	13.350
2002-01-01	12.225
2003-01-01	10.100
2004-01-01	9.725
2005-01-01	8.650
2006-01-01	5.725
2007-01-01	4.175
2008-01-01	4.900
2009-01-01	15.775
2010-01-01	17.425
2011-01-01	11.425
2012-01-01	9.775
2013-01-01	8.325
2014-01-01	7.125
2015-01-01	5.350
2016-01-01	6.175
2017-01-01	5.175