Year Percent 2005-01-01 1.42347999999999990 2006-01-01 0.59701900000000000 2007-01-01 0.00348900000000000 2008-01-01 0.05387000000000000 2009-01-01 0.13612600000000000 2010-01-01 0.12756600000000000 2011-01-01 0.12005400000000000 2012-01-01 0.12431099999999999 2013-01-01 0.30982500000000000 2014-01-01 0.31084800000000000 2015-01-01 0.55917299999999990 2016-01-01 0.57519700000000010 2017-01-01 0.52345100000000000