Year Index 1999-01-01 -0.042934000000000000 2000-01-01 -0.058655999999999990 2001-01-01 -0.045091000000000000 2002-01-01 -0.040642000000000005 2003-01-01 -0.035794000000000000 2004-01-01 -0.035979000000000004 2005-01-01 -0.024076000000000000 2006-01-01 -0.041681000000000000 2007-01-01 -0.041004000000000000 2008-01-01 -0.044456000000000000 2009-01-01 -0.041186000000000000 2010-01-01 -0.038471000000000000 2011-01-01 -0.039284000000000000 2012-01-01 -0.037947000000000000 2013-01-01 -0.034039000000000000 2014-01-01 -0.028645000000000000