Year	Index
1995-01-01	33.2
1998-01-01	30.3
2002-01-01	32.9
2007-01-01	35.8
2010-01-01	33.1
2011-01-01	33.9
2012-01-01	33.8
2014-01-01	32
2016-01-01	32.3