Year	Z-score
1996-01-01	3.1432599999999997
1997-01-01	2.6889900000000000
1998-01-01	6.7736300000000010
1999-01-01	7.5195700000000000
2000-01-01	9.2656300000000000
2001-01-01	13.5531000000000000
2002-01-01	8.8845000000000000
2003-01-01	11.6148000000000000
2004-01-01	11.3051000000000000
2005-01-01	10.6372000000000000
2006-01-01	10.7193000000000000
2007-01-01	10.8749000000000000
2008-01-01	10.0266000000000000
2009-01-01	11.7410000000000000
2010-01-01	12.5466000000000000
2011-01-01	12.5279999999999990
2012-01-01	10.7977000000000000
2013-01-01	11.2976000000000000
2014-01-01	10.2333000000000000
2015-01-01	9.9135600000000000
2016-01-01	9.6299600000000000