Year	Index
2001-01-01	15.81030
2002-01-01	14.22630
2003-01-01	12.79670
2004-01-01	15.08690
2005-01-01	13.18680
2006-01-01	15.83790
2007-01-01	15.67640
2008-01-01	18.37000
2009-01-01	31.38290
2010-01-01	26.73560
2011-01-01	17.58690
2012-01-01	19.34010
2013-01-01	10.02670
2014-01-01	8.56602
2015-01-01	8.42896
2016-01-01	7.39770
2017-01-01	6.76375