Year	Percent
2009-01-01	9.400000000000000
2010-01-01	9.255419999999999
2011-01-01	14.616500000000000
2012-01-01	16.964400000000000
2013-01-01	17.497900000000000
2014-01-01	16.611300000000000
2015-01-01	17.611400000000000
2016-01-01	15.448900000000000