Year	Z-score
1996-01-01	7.6927100000000010
1997-01-01	4.4293500000000000
1998-01-01	2.4783100000000000
1999-01-01	5.0497800000000000
2000-01-01	6.8816300000000000
2001-01-01	7.4966500000000000
2002-01-01	7.7990100000000010
2003-01-01	7.7544699999999995
2004-01-01	8.2168500000000000
2005-01-01	9.3373400000000000
2006-01-01	2.4878400000000003
2007-01-01	6.4415900000000000
2008-01-01	5.4564900000000005
2009-01-01	6.1252300000000000
2010-01-01	11.6275000000000000
2011-01-01	11.5057000000000000
2012-01-01	11.3961000000000000
2013-01-01	11.3016000000000000
2014-01-01	11.0217000000000000
2015-01-01	10.0849000000000000
2016-01-01	10.2000000000000000