Year Percent 2005-01-01 99.8222 2006-01-01 97.9146 2007-01-01 93.8859 2008-01-01 90.8511 2009-01-01 91.6881 2010-01-01 88.1558 2011-01-01 75.9070 2012-01-01 70.3108 2013-01-01 73.8102 2014-01-01 75.2975 2015-01-01 82.8878 2016-01-01 84.0193