Year	Percent
1998-01-01	8.5000
1999-01-01	8.4000
2000-01-01	8.5000
2001-01-01	9.0000
2002-01-01	9.2000
2003-01-01	9.2000
2004-01-01	10.3000
2005-01-01	10.3000
2006-01-01	10.5000
2007-01-01	10.3000
2008-01-01	9.3000
2009-01-01	12.4000
2010-01-01	12.7393
2011-01-01	12.2289
2012-01-01	11.9634
2013-01-01	11.7761
2014-01-01	11.6566
2015-01-01	11.7111
2016-01-01	11.5855