Year	Index
1999-01-01	-0.06
2000-01-01	-0.06
2001-01-01	-0.06
2002-01-01	-0.04
2003-01-01	-0.04
2004-01-01	-0.05
2005-01-01	-0.05
2006-01-01	-0.06
2007-01-01	-0.06
2008-01-01	-0.05
2009-01-01	-0.04
2010-01-01	-0.04
2011-01-01	-0.04
2012-01-01	-0.04
2013-01-01	-0.03
2014-01-01	-0.02
2015-01-01	-0.02