Year Index 1996-01-01 0.14194400000000001 1997-01-01 0.12816800000000000 1998-01-01 0.16300400000000000 1999-01-01 0.12148900000000001 2000-01-01 0.11497500000000000 2001-01-01 0.15627800000000000 2002-01-01 0.18927600000000000 2003-01-01 0.23305100000000000 2004-01-01 0.21367100000000000 2005-01-01 0.20951799999999998 2006-01-01 0.19547899999999999 2007-01-01 0.17893399999999998 2008-01-01 0.14098600000000000 2009-01-01 0.36073200000000000 2010-01-01 0.28774299999999997 2011-01-01 0.21397399999999997 2012-01-01 0.20179000000000000 2013-01-01 0.24045500000000003 2014-01-01 0.24713000000000002