Year	Index
1996-01-01	0.22515600000000000
1997-01-01	0.26446200000000000
1998-01-01	0.29964700000000000
1999-01-01	0.31249400000000000
2000-01-01	0.30627200000000000
2001-01-01	0.33545500000000000
2002-01-01	0.43064500000000000
2003-01-01	0.40724400000000000
2004-01-01	0.43831499999999995
2005-01-01	0.44385699999999995
2006-01-01	0.44193800000000000
2007-01-01	0.39301100000000000
2008-01-01	0.42054100000000000
2009-01-01	0.41883500000000000
2010-01-01	0.40425600000000000
2011-01-01	0.42203199999999996