Year	Index
1993-01-01	27
1995-01-01	31
1996-01-01	31.6
2004-01-01	36.4
2005-01-01	39
2006-01-01	35.6
2007-01-01	37.5
2008-01-01	37.2
2009-01-01	35.9
2010-01-01	35
2011-01-01	35.8
2012-01-01	35.2
2013-01-01	35.5
2014-01-01	35.1
2015-01-01	34.2