Year	Percent
2006-01-01	25.6
2007-01-01	25.6
2008-01-01	25.6
2009-01-01	19.7
2010-01-01	19.7
2011-01-01	19.7
2012-01-01	19.7
2013-01-01	19.7
2014-01-01	19.7
2015-01-01	19.7
2016-01-01	11.3