Year	Percent
2001-01-01	8.7000000000000000
2002-01-01	7.5000000000000000
2003-01-01	8.3000000000000000
2004-01-01	8.8000000000000000
2005-01-01	7.8000000000000000
2006-01-01	7.5000000000000000
2007-01-01	7.9000000000000000
2008-01-01	8.0000000000000000
2009-01-01	7.9000000000000000
2010-01-01	8.3986500000000000
2011-01-01	7.8421899999999996
2012-01-01	8.0440800000000010
2013-01-01	8.5674300000000000
2014-01-01	10.2823000000000000
2015-01-01	10.9372000000000000
2016-01-01	11.0543000000000000