Year	Z-score
1996-01-01	3.0720500000000000
1997-01-01	2.0626700000000002
1998-01-01	1.7503600000000000
1999-01-01	2.3730300000000000
2000-01-01	4.1553700000000000
2001-01-01	4.3692800000000010
2002-01-01	3.9592800000000000
2003-01-01	4.9636300000000000
2004-01-01	6.1226199999999995
2005-01-01	3.7554700000000000
2006-01-01	4.2039200000000000
2007-01-01	3.9749300000000000
2008-01-01	4.4332000000000000
2009-01-01	4.4581100000000000
2010-01-01	3.9383800000000004
2011-01-01	2.2331500000000000
2012-01-01	3.0482500000000000
2013-01-01	3.2317600000000000
2014-01-01	3.1657700000000000
2015-01-01	2.6290400000000003
2016-01-01	2.9194900000000000