Year	Z-score
1996-01-01	5.4356000000000000
1997-01-01	6.1648100000000000
1998-01-01	4.4852000000000000
1999-01-01	8.0380000000000000
2000-01-01	2.6954400000000000
2001-01-01	4.8435200000000000
2002-01-01	4.6266200000000000
2003-01-01	4.7999800000000010
2004-01-01	4.7327900000000005
2005-01-01	4.6379900000000000
2006-01-01	5.2242900000000000
2007-01-01	5.1444500000000000
2008-01-01	4.9849900000000000
2009-01-01	4.8549800000000000
2010-01-01	4.6357000000000000
2011-01-01	4.9357500000000000
2012-01-01	5.0084400000000000
2013-01-01	4.6427700000000000
2014-01-01	4.6109599999999995
2015-01-01	5.5420600000000000
2016-01-01	4.8026599999999995