Year	Z-score
2005-01-01	19.091500000000000
2006-01-01	31.040000000000000
2007-01-01	19.820700000000000
2008-01-01	12.367500000000000
2009-01-01	16.551000000000000
2010-01-01	15.470999999999998
2011-01-01	11.768100000000000
2012-01-01	11.715100000000000
2013-01-01	11.772900000000000
2014-01-01	10.289600000000000
2015-01-01	10.480200000000000
2016-01-01	12.126100000000000