Year	Percent
2006-01-01	69.9
2007-01-01	69.9
2008-01-01	69.9
2009-01-01	69.9
2010-01-01	66.8
2011-01-01	66.8
2012-01-01	66.8
2013-01-01	66.8
2014-01-01	66.8
2015-01-01	66.8
2016-01-01	66.8
2017-01-01	77.8