Year	Z-score
1996-01-01	6.8615699999999995
1997-01-01	7.1821100000000010
1998-01-01	7.5130800000000000
1999-01-01	10.2880000000000000
2000-01-01	5.5850700000000000
2001-01-01	9.0246600000000000
2002-01-01	13.6647000000000000
2003-01-01	16.8000000000000000
2004-01-01	12.7830000000000000
2005-01-01	12.6814000000000000
2006-01-01	14.8963000000000000
2007-01-01	16.2220000000000000
2008-01-01	17.5599000000000000
2009-01-01	14.8653000000000000
2010-01-01	13.6545000000000000
2011-01-01	14.7084000000000000
2012-01-01	14.4589000000000000
2013-01-01	14.1259000000000000
2014-01-01	14.0521000000000000
2015-01-01	15.7449000000000000
2016-01-01	14.2906000000000000