Year Percent 1996-01-01 0.00000000000000000 1997-01-01 -2.59929000000000030 1998-01-01 1.51825000000000000 1999-01-01 -0.34429499999999996 2000-01-01 0.71597300000000000 2001-01-01 0.71597300000000000 2002-01-01 0.59761999999999990 2003-01-01 1.20079000000000000 2004-01-01 0.80308600000000000 2005-01-01 0.79143900000000000 2006-01-01 1.05799000000000000 2007-01-01 0.99153500000000000 2008-01-01 0.47228800000000000 2009-01-01 0.24121399999999998 2010-01-01 -0.55241500000000000 2011-01-01 0.71516800000000000 2012-01-01 0.84000499999999990 2013-01-01 -0.13401900000000000 2014-01-01 0.62401800000000010 2015-01-01 0.15035199999999999 2016-01-01 0.62576500000000000