Year	Index
2003-01-01	8.2304000000000000
2004-01-01	8.2304000000000000
2005-01-01	8.2304000000000000
2006-01-01	7.0655100000000010
2007-01-01	8.0779900000000000
2008-01-01	9.3287000000000000
2009-01-01	11.8989000000000000
2010-01-01	8.4361000000000000
2011-01-01	14.1045000000000000
2012-01-01	10.7322000000000000
2013-01-01	7.6405300000000000
2014-01-01	6.6049200000000000
2015-01-01	6.8366300000000000
2016-01-01	7.5020800000000000
2017-01-01	5.8449800000000005