Year	Z-score
1996-01-01	6.2526100000000000
1997-01-01	5.9329199999999990
1998-01-01	5.6081900000000005
1999-01-01	8.5689999999999990
2000-01-01	7.4451300000000010
2001-01-01	0.4158040000000000
2002-01-01	5.3004500000000000
2003-01-01	7.5907300000000010
2004-01-01	11.2950000000000000
2005-01-01	9.9869500000000000
2006-01-01	8.6758899999999990
2007-01-01	9.4592700000000000
2008-01-01	7.9953899999999996
2009-01-01	9.5495900000000000
2010-01-01	9.5655399999999990
2011-01-01	8.2633500000000000
2012-01-01	9.3575000000000000
2013-01-01	7.8263800000000000
2014-01-01	8.1343400000000000
2015-01-01	7.8303000000000000
2016-01-01	8.0720600000000000