Year	Z-score
1996-01-01	7.1760000000000000
1997-01-01	3.8124400000000000
1998-01-01	5.5496500000000000
1999-01-01	6.5303900000000010
2000-01-01	8.9560300000000000
2001-01-01	7.6801100000000010
2002-01-01	7.3629300000000000
2003-01-01	7.2531000000000000
2004-01-01	6.4396500000000000
2005-01-01	6.5032300000000000
2006-01-01	6.0203400000000000
2007-01-01	5.2811200000000000
2008-01-01	5.1296100000000000
2009-01-01	4.4178500000000000
2010-01-01	4.6995300000000000
2011-01-01	4.4490300000000005
2012-01-01	4.8567599999999995
2013-01-01	2.6164300000000000
2014-01-01	4.0223000000000000
2015-01-01	4.9589700000000000
2016-01-01	4.2688200000000000