Year	Z-score
1996-01-01	8.3643399999999990
1997-01-01	7.8210100000000000
1998-01-01	8.2557500000000000
1999-01-01	8.5143800000000010
2000-01-01	8.2724200000000000
2001-01-01	8.3996200000000000
2002-01-01	7.3480600000000000
2003-01-01	7.1183500000000000
2004-01-01	8.2296199999999990
2005-01-01	8.1657400000000000
2006-01-01	6.8924600000000010
2007-01-01	6.8646899999999995
2008-01-01	5.8192699999999995
2009-01-01	6.2510400000000000
2010-01-01	7.2722200000000000
2011-01-01	7.3114100000000000
2012-01-01	7.7191500000000000
2013-01-01	8.2207500000000000
2014-01-01	8.4675900000000000
2015-01-01	9.8687500000000000
2016-01-01	10.5488000000000000