Year	Z-score
1996-01-01	3.1338500000000000
1997-01-01	7.4968900000000000
1998-01-01	7.1890500000000000
1999-01-01	6.7531000000000000
2000-01-01	5.7854400000000000
2001-01-01	6.6979999999999995
2002-01-01	9.5449500000000000
2003-01-01	8.5182100000000000
2004-01-01	10.7519000000000000
2005-01-01	13.4313000000000000
2006-01-01	14.1272000000000000
2007-01-01	13.5309999999999990
2008-01-01	14.8702000000000000
2009-01-01	11.6169000000000000
2010-01-01	12.4622000000000000
2011-01-01	10.9915000000000000
2012-01-01	10.2266000000000000
2013-01-01	9.5829000000000000
2014-01-01	8.4115399999999990
2015-01-01	8.5212399999999990
2016-01-01	9.2746000000000000