Year	Index
2005-01-01	30.2
2006-01-01	30
2007-01-01	31.4
2008-01-01	30.5
2009-01-01	31
2010-01-01	28.9
2011-01-01	30.8
2012-01-01	32.3
2013-01-01	32.4
2014-01-01	31.9