Year Percent 1994-01-01 0.9882139999999999 1995-01-01 0.9882139999999999 1996-01-01 0.9882139999999999 1997-01-01 0.8774460000000000 1998-01-01 1.1234800000000000 1999-01-01 0.8013770000000000 2000-01-01 0.8133660000000000 2001-01-01 0.8588830000000000 2002-01-01 0.9897260000000000 2003-01-01 1.0148400000000000 2004-01-01 1.0671500000000000 2005-01-01 0.9980620000000001 2006-01-01 0.8572160000000000 2007-01-01 0.8917630000000000 2008-01-01 0.9321950000000001 2009-01-01 1.1457000000000000 2010-01-01 1.0252100000000000 2011-01-01 0.9340139999999999 2012-01-01 0.9732700000000001 2013-01-01 0.9021790000000001 2014-01-01 0.7890080000000000 2015-01-01 0.8519080000000000