Year	Index
2001-01-01	9.6005000000000000
2002-01-01	11.1779999999999990
2003-01-01	6.5886100000000010
2004-01-01	4.2697900000000000
2005-01-01	3.9056000000000000
2006-01-01	6.0657600000000000
2007-01-01	11.1097000000000000
2008-01-01	8.7283300000000000
2009-01-01	16.3154000000000000
2010-01-01	8.1917400000000000
2011-01-01	5.8407900000000000
2012-01-01	6.2268300000000005
2013-01-01	5.9978900000000000
2014-01-01	6.1091100000000000
2015-01-01	6.8301200000000000
2016-01-01	5.5129199999999990
2017-01-01	4.6487300000000005