Year Percent 1993-01-01 0.6680800000000000 1994-01-01 0.9531229999999999 1995-01-01 1.1172500000000000 1996-01-01 1.2272700000000000 1997-01-01 1.2592500000000000 1998-01-01 1.2325000000000000 1999-01-01 1.2674500000000000 2000-01-01 1.2604100000000000 2001-01-01 1.2361400000000000 2002-01-01 1.3424800000000000 2003-01-01 1.4387500000000000 2004-01-01 1.4941799999999998 2005-01-01 1.4768400000000000 2006-01-01 1.4302100000000000 2007-01-01 1.4869999999999999 2008-01-01 1.6002299999999998 2009-01-01 1.6668900000000002 2010-01-01 1.4047900000000000 2011-01-01 1.2497200000000002 2012-01-01 1.2348200000000000 2013-01-01 1.2305700000000002 2014-01-01 1.2637800000000000 2015-01-01 1.2829100000000000 2016-01-01 1.3761900000000000