Year	Z-score
1996-01-01	6.5617500000000000
1997-01-01	4.5765199999999995
1998-01-01	7.0950300000000000
1999-01-01	7.9892000000000000
2000-01-01	6.2544900000000005
2001-01-01	5.6670000000000010
2002-01-01	6.6764800000000010
2003-01-01	6.6508600000000010
2004-01-01	5.9525500000000000
2005-01-01	4.7371700000000000
2006-01-01	4.9568200000000000
2007-01-01	5.4010600000000000
2008-01-01	5.7144000000000000
2009-01-01	1.8418900000000002
2010-01-01	4.4118000000000000
2011-01-01	6.5488500000000000
2012-01-01	6.7909200000000000
2013-01-01	7.4498500000000000
2014-01-01	7.1307899999999990
2015-01-01	7.9217600000000010
2016-01-01	6.5039600000000000