Year Percent 2009-01-01 44.5000 2010-01-01 40.7387 2011-01-01 27.0183 2012-01-01 45.3815 2013-01-01 28.0367 2014-01-01 28.0367 2015-01-01 28.0367 2016-01-01 37.0069