Year	Index
2003-01-01	32.8
2004-01-01	33.6
2005-01-01	34.6
2006-01-01	35.1
2007-01-01	34
2008-01-01	33.6
2009-01-01	33.6
2010-01-01	34.1
2011-01-01	34.8
2012-01-01	36.2
2013-01-01	36.1
2014-01-01	35.8
2015-01-01	36