Year	Percent
2000-01-01	14.100
2001-01-01	12.425
2002-01-01	10.900
2003-01-01	9.500
2004-01-01	9.200
2005-01-01	7.725
2006-01-01	5.550
2007-01-01	4.175
2008-01-01	4.875
2009-01-01	12.825
2010-01-01	15.125
2011-01-01	11.450
2012-01-01	9.525
2013-01-01	8.275
2014-01-01	7.175
2015-01-01	5.550
2016-01-01	5.925
2017-01-01	5.250