Year	Index
1996-01-01	0.20772100000000002
1997-01-01	0.03529800000000000
1998-01-01	0.08992900000000000
1999-01-01	0.09014100000000000
2000-01-01	0.11252700000000000
2001-01-01	0.12962000000000000
2002-01-01	0.18496700000000002
2003-01-01	0.21145500000000003
2004-01-01	0.22339099999999998
2005-01-01	0.20119000000000000
2006-01-01	0.26259899999999997
2007-01-01	0.23888299999999998
2008-01-01	0.23893600000000000
2009-01-01	0.22594899999999998
2010-01-01	0.17666900000000000