Year Percent 1996-01-01 0.781552999999999900 1997-01-01 0.455057000000000000 1998-01-01 0.402418000000000000 1999-01-01 0.877204999999999900 2000-01-01 1.055140000000000000 2001-01-01 0.783768999999999900 2002-01-01 0.852632000000000000 2003-01-01 1.205720000000000100 2004-01-01 -0.049654000000000004 2005-01-01 2.154690000000000000 2006-01-01 1.132080000000000000 2007-01-01 1.364110000000000000 2008-01-01 0.864799000000000000 2009-01-01 0.317922000000000000 2010-01-01 0.680138000000000000 2011-01-01 0.780896000000000000 2012-01-01 0.884595000000000000 2013-01-01 0.906734000000000000 2014-01-01 0.993238000000000000 2015-01-01 1.099680000000000000 2016-01-01 1.060130000000000000