Year	Percent
2001-01-01	20.1000
2002-01-01	19.1000
2003-01-01	17.0000
2004-01-01	15.7000
2005-01-01	14.4000
2006-01-01	9.7000
2007-01-01	8.8000
2008-01-01	9.4000
2009-01-01	10.7000
2010-01-01	11.7655
2011-01-01	13.6144
2012-01-01	14.2134
2013-01-01	14.3677
2014-01-01	14.3778
2015-01-01	14.0983
2016-01-01	14.3547