Year	Z-score
1996-01-01	5.4724000000000000
1997-01-01	3.8184199999999997
1998-01-01	8.7452600000000000
1999-01-01	9.9987900000000000
2000-01-01	6.5479100000000000
2001-01-01	5.3986700000000000
2002-01-01	6.7183199999999990
2003-01-01	7.3968800000000000
2004-01-01	8.4187500000000000
2005-01-01	6.6538900000000000
2006-01-01	6.7521000000000000
2007-01-01	4.9159500000000000
2008-01-01	5.1447100000000000
2009-01-01	2.9414700000000003
2010-01-01	4.2187199999999990
2011-01-01	3.9070099999999996
2012-01-01	5.8308500000000000
2013-01-01	5.7986500000000000
2014-01-01	4.8377400000000000