Year	Index
1992-01-01	35.7
1998-01-01	35.4
2002-01-01	37
2004-01-01	36.8
2006-01-01	35.8
2008-01-01	35.6
2010-01-01	39.3
2012-01-01	35.6
2014-01-01	34.8
2016-01-01	35.3