Year	Index
2001-01-01	7.7965100000000005
2002-01-01	11.7972000000000000
2003-01-01	13.0842000000000000
2004-01-01	12.6024000000000000
2005-01-01	15.9437000000000000
2006-01-01	24.7517000000000000
2007-01-01	19.6728000000000000
2008-01-01	16.3443000000000000
2009-01-01	24.3183000000000000
2010-01-01	15.8218000000000000
2011-01-01	9.9503700000000000
2012-01-01	7.8325100000000010
2013-01-01	7.3592200000000000
2014-01-01	8.8948600000000010
2015-01-01	7.2961399999999990
2016-01-01	6.7414200000000000
2017-01-01	5.6261000000000000