Year	Index
1996-01-01	0.40326400000000000
1997-01-01	0.11134200000000001
1998-01-01	0.32575200000000000
1999-01-01	0.32202200000000000
2000-01-01	0.28782500000000000
2001-01-01	0.28239200000000003
2002-01-01	0.33930200000000000
2003-01-01	0.33608200000000000
2004-01-01	0.30603500000000000
2005-01-01	0.33116799999999996
2006-01-01	0.30442100000000000
2007-01-01	0.29473100000000000
2008-01-01	0.23252899999999999
2009-01-01	0.23641900000000002
2010-01-01	0.32361700000000000
2011-01-01	0.32669600000000000
2012-01-01	0.33244400000000000
2013-01-01	0.36433800000000000