Year	Z-score
1996-01-01	13.827300000000000
1997-01-01	11.411100000000000
1998-01-01	8.001990000000000
1999-01-01	9.212660000000001
2000-01-01	6.575730000000000
2001-01-01	7.490160000000000
2002-01-01	9.135500000000000
2003-01-01	8.201760000000000
2004-01-01	8.643170000000000
2005-01-01	7.510510000000001
2006-01-01	6.906850000000000
2007-01-01	6.546760000000000
2008-01-01	4.476130000000000
2009-01-01	6.882530000000000
2010-01-01	6.727630000000000
2011-01-01	8.050680000000000
2012-01-01	8.151370000000000
2013-01-01	8.421790000000000
2014-01-01	7.816130000000000
2015-01-01	7.051510000000000
2016-01-01	7.314030000000001