Year Percent 2005-01-01 32.4324 2006-01-01 40.8163 2007-01-01 59.0909 2008-01-01 80.0000 2009-01-01 12.1427 2010-01-01 44.9589 2011-01-01 46.9154 2012-01-01 39.3643 2013-01-01 37.5000 2014-01-01 50.0000