Year	Index
2001-01-01	31.9707
2002-01-01	44.7206
2003-01-01	19.0324
2004-01-01	13.5336
2005-01-01	13.9909
2006-01-01	16.9649
2007-01-01	14.8622
2008-01-01	19.3307
2009-01-01	32.3128
2010-01-01	32.7896
2011-01-01	23.6270
2012-01-01	15.6899
2013-01-01	11.8900
2014-01-01	14.4731
2015-01-01	15.4949
2016-01-01	18.0552
2017-01-01	15.0276