Year	Index
2006-01-01	19.285200000000000
2007-01-01	16.718100000000000
2008-01-01	12.136500000000000
2009-01-01	18.247000000000000
2010-01-01	14.957400000000000
2011-01-01	10.109700000000000
2012-01-01	8.095020000000000
2013-01-01	9.435410000000001
2014-01-01	10.880100000000000
2015-01-01	10.287100000000000
2016-01-01	9.472590000000000
2017-01-01	9.405560000000001