Year Percent 1996-01-01 0.607549000000000000 1997-01-01 0.544656000000000000 1998-01-01 0.609604000000000000 1999-01-01 0.752836000000000000 2000-01-01 1.071950000000000000 2001-01-01 0.421185999999999950 2002-01-01 0.817981000000000100 2003-01-01 0.900504999999999900 2004-01-01 1.852740000000000000 2005-01-01 2.010329999999999700 2006-01-01 1.995220000000000000 2007-01-01 1.966570000000000200 2008-01-01 1.612610000000000000 2009-01-01 -0.047675999999999996 2010-01-01 0.074952000000000000 2011-01-01 0.860606000000000000 2012-01-01 0.222545000000000000 2013-01-01 0.542072999999999900 2014-01-01 0.776221000000000000 2015-01-01 0.753938000000000000 2016-01-01 0.563118000000000000