Year	Index
1996-01-01	0.18367999999999998
1997-01-01	0.19955100000000000
1998-01-01	0.11528100000000000
1999-01-01	0.24778499999999998
2000-01-01	0.22457500000000000
2001-01-01	0.29427600000000004
2002-01-01	0.35600600000000000
2003-01-01	0.38181000000000000
2004-01-01	0.41973900000000003
2005-01-01	0.42188500000000000
2006-01-01	0.39966599999999997
2007-01-01	0.33947300000000000
2008-01-01	0.30587900000000000
2009-01-01	0.27401900000000000
2010-01-01	0.32980100000000000
2011-01-01	0.39311100000000000
2012-01-01	0.37192100000000000
2013-01-01	0.37243300000000000
2014-01-01	0.37364800000000000