Year	Index
1999-01-01	-0.045
2000-01-01	-0.050
2001-01-01	-0.030
2002-01-01	-0.040
2003-01-01	-0.030
2004-01-01	-0.040
2005-01-01	-0.030
2006-01-01	-0.040
2007-01-01	-0.060
2008-01-01	-0.040
2009-01-01	-0.020
2010-01-01	-0.030
2011-01-01	0.000
2012-01-01	-0.030
2013-01-01	-0.010
2014-01-01	-0.010
2015-01-01	-0.010