Year	Percent
2006-01-01	40.7
2007-01-01	40.7
2008-01-01	40.7
2009-01-01	17.6
2010-01-01	17.6
2011-01-01	17.6
2012-01-01	17.6
2013-01-01	17.6
2014-01-01	17.6
2015-01-01	17.6
2016-01-01	17.6
2017-01-01	17.4
