Year Percent 2000-01-01 100.0000 2001-01-01 100.0000 2002-01-01 100.0000 2003-01-01 100.0000 2004-01-01 100.0000 2005-01-01 100.0000 2006-01-01 100.0000 2007-01-01 100.0000 2008-01-01 100.0000 2009-01-01 100.0000 2010-01-01 100.0000 2011-01-01 96.8508 2012-01-01 96.5870 2013-01-01 100.0000 2014-01-01 100.0000 2015-01-01 96.8055 2016-01-01 93.8220