Year	Z-score
1996-01-01	15.216900000000000
1997-01-01	10.274400000000000
1998-01-01	7.729660000000001
1999-01-01	9.381380000000000
2000-01-01	13.791700000000000
2001-01-01	11.670800000000000
2002-01-01	11.670800000000000
2003-01-01	13.859700000000000
2004-01-01	14.266400000000000
2005-01-01	10.853200000000000
2006-01-01	10.915500000000000
2007-01-01	9.839660000000000
2008-01-01	10.570500000000000
2009-01-01	10.546300000000000
2010-01-01	11.311900000000000
2011-01-01	12.423600000000000
2012-01-01	10.202500000000000
2013-01-01	9.655160000000000
2014-01-01	9.463560000000001
2015-01-01	6.954070000000000
2016-01-01	5.557550000000000