Year	Index
2002-01-01	18.630600000000000
2003-01-01	16.283600000000000
2004-01-01	18.172600000000000
2005-01-01	21.535999999999998
2006-01-01	29.200600000000000
2007-01-01	33.524500000000000
2008-01-01	23.088100000000000
2009-01-01	26.646700000000000
2010-01-01	17.535400000000000
2011-01-01	16.539700000000000
2012-01-01	18.412500000000000
2013-01-01	15.098800000000000
2014-01-01	12.917900000000000
2015-01-01	16.673600000000000
2016-01-01	18.263200000000000
2017-01-01	12.788200000000000