Year	Percent
1999-01-01	13.0000
2000-01-01	13.0000
2001-01-01	12.6000
2002-01-01	12.8000
2003-01-01	12.6000
2004-01-01	12.3000
2005-01-01	14.6000
2006-01-01	12.9000
2007-01-01	14.1000
2008-01-01	13.1000
2009-01-01	13.4000
2010-01-01	13.5268
2011-01-01	12.5000
2012-01-01	13.0100
2013-01-01	13.4600
2014-01-01	13.0700
2015-01-01	13.3600