Year Index 1996-01-01 0.26226000000000000 1997-01-01 0.25458000000000003 1998-01-01 0.24111799999999997 1999-01-01 0.26618600000000003 2000-01-01 0.22480600000000000 2001-01-01 0.28911900000000000 2002-01-01 0.35992500000000000 2003-01-01 0.16567300000000001 2004-01-01 0.27503099999999997 2005-01-01 0.25414499999999995 2006-01-01 0.19033800000000000 2007-01-01 0.30539400000000000 2008-01-01 0.18791000000000000 2009-01-01 0.30332500000000000 2010-01-01 0.33629000000000003 2011-01-01 0.34624099999999997 2012-01-01 0.35687100000000000 2013-01-01 0.36716500000000000 2014-01-01 0.36381900000000000