Year	Z-score
1996-01-01	0.0909310000000000
1997-01-01	0.4000940000000000
1998-01-01	0.1767320000000000
1999-01-01	0.7083229999999999
2000-01-01	0.6112980000000000
2001-01-01	0.4534040000000000
2002-01-01	0.4534040000000000
2003-01-01	0.4534040000000000
2004-01-01	6.4795500000000000
2005-01-01	0.0440620000000000
2006-01-01	4.8737400000000000
2007-01-01	7.5023800000000005
2008-01-01	5.0835900000000000
2009-01-01	5.1568900000000000
2010-01-01	5.4031500000000000
2011-01-01	5.0875200000000000
2012-01-01	5.0019800000000005
2013-01-01	5.0833100000000000
2014-01-01	5.4648000000000000
2015-01-01	11.8174000000000000
2016-01-01	10.3448000000000000