Year Percent 1994-01-01 1.4835399999999999 1995-01-01 1.4128100000000001 1996-01-01 1.3185100000000000 1997-01-01 1.2367600000000000 1998-01-01 1.2679700000000000 1999-01-01 1.2122100000000000 2000-01-01 0.9974890000000000 2001-01-01 1.1651400000000000 2002-01-01 1.2917800000000000 2003-01-01 1.2229999999999999 2004-01-01 1.1363400000000000 2005-01-01 1.0583600000000000 2006-01-01 1.0641399999999999 2007-01-01 1.0782200000000002 2008-01-01 1.0667700000000000 2009-01-01 1.1112799999999998 2010-01-01 1.1198299999999999 2011-01-01 1.1180200000000000 2012-01-01 1.1922300000000000 2013-01-01 1.1788000000000000 2014-01-01 1.2048600000000000 2015-01-01 1.2872900000000000 2016-01-01 1.2694600000000000