Year Percent 2008-01-01 97.2573 2009-01-01 96.8603 2010-01-01 96.1069 2011-01-01 94.7328 2012-01-01 100.0000 2013-01-01 100.0000 2014-01-01 100.0000 2015-01-01 88.4361 2016-01-01 94.4248