Year Percent 1996-01-01 1.47878000000000000 1997-01-01 1.53522999999999990 1998-01-01 0.96853300000000000 1999-01-01 0.48207900000000000 2000-01-01 0.43054000000000000 2001-01-01 0.45078599999999996 2002-01-01 0.64861099999999990 2003-01-01 0.67654500000000000 2004-01-01 0.44412600000000000 2005-01-01 0.59939800000000000 2006-01-01 0.80926999999999990 2007-01-01 1.27095000000000000 2008-01-01 1.01897000000000020 2009-01-01 1.00566000000000000 2010-01-01 1.14001000000000000 2011-01-01 0.79280500000000000 2012-01-01 0.96389200000000000 2013-01-01 1.12184000000000000 2014-01-01 1.08867999999999990 2015-01-01 1.54481000000000000 2016-01-01 0.96161600000000000