Year Percent 2000-01-01 96.1000 2001-01-01 96.1000 2002-01-01 96.1000 2003-01-01 96.1000 2004-01-01 96.1000 2005-01-01 96.1000 2006-01-01 96.1000 2007-01-01 96.1000 2008-01-01 96.1000 2009-01-01 96.1000 2010-01-01 96.1000 2011-01-01 96.1000 2012-01-01 87.3029 2013-01-01 64.2940 2014-01-01 48.1019 2015-01-01 54.2142 2016-01-01 51.4703