Year	Z-score
1996-01-01	7.1386199999999995
1997-01-01	7.0571399999999995
1998-01-01	8.3555100000000000
1999-01-01	6.1917500000000000
2000-01-01	4.4704300000000000
2001-01-01	5.7233000000000000
2002-01-01	6.3071000000000000
2003-01-01	7.1110500000000000
2004-01-01	6.6137300000000000
2005-01-01	8.4837500000000000
2006-01-01	7.7630899999999990
2007-01-01	6.3560600000000000
2008-01-01	5.6833599999999995
2009-01-01	6.5469500000000000
2010-01-01	7.2661800000000000
2011-01-01	7.0968200000000000
2012-01-01	8.0539000000000000
2013-01-01	8.8274300000000000
2014-01-01	8.0445400000000000
2015-01-01	7.7917000000000000
2016-01-01	7.5981300000000000