Year	Z-score
1996-01-01	5.6285400000000000
1997-01-01	4.0148400000000000
1998-01-01	3.5073000000000000
1999-01-01	3.3746099999999997
2000-01-01	2.7127600000000000
2001-01-01	2.2566200000000003
2002-01-01	5.9194100000000000
2003-01-01	3.6880300000000004
2004-01-01	8.4162600000000010
2005-01-01	4.1679300000000000
2006-01-01	3.2468100000000000
2007-01-01	3.4018100000000000
2008-01-01	2.6818600000000000
2009-01-01	1.0193299999999998
2010-01-01	0.0551380000000000
2011-01-01	4.6895200000000000
2012-01-01	6.0654300000000000
2013-01-01	6.1788500000000000
2014-01-01	9.4166700000000000
2015-01-01	13.6192000000000000
2016-01-01	12.3430000000000000