Year	Z-score
1996-01-01	7.745110000000000
1997-01-01	9.296560000000001
1998-01-01	7.186930000000000
1999-01-01	10.127700000000000
2000-01-01	9.570560000000000
2001-01-01	10.347900000000000
2002-01-01	7.971470000000000
2003-01-01	7.399539999999999
2004-01-01	7.780500000000000
2005-01-01	6.406410000000000
2006-01-01	7.069610000000001
2007-01-01	7.708380000000000
2008-01-01	7.789100000000000
2009-01-01	6.562200000000000
2010-01-01	6.959389999999999
2011-01-01	7.494389999999999
2012-01-01	6.294470000000000
2013-01-01	5.788130000000001
2014-01-01	4.858300000000000
2015-01-01	6.225619999999999
2016-01-01	6.813550000000000