Year	Percent
1999-01-01	12.8000
2000-01-01	12.8000
2001-01-01	12.8000
2002-01-01	12.8000
2003-01-01	12.8000
2004-01-01	12.8000
2005-01-01	2.5000
2006-01-01	4.9000
2007-01-01	8.4000
2008-01-01	12.0000
2009-01-01	11.4000
2010-01-01	12.1630
2011-01-01	12.7119
2012-01-01	13.2526
2013-01-01	12.1895
2014-01-01	13.1798
2015-01-01	13.4530
2016-01-01	13.1132