Year	Z-score
1996-01-01	10.7964000000000000
1997-01-01	11.9141000000000000
1998-01-01	10.7888000000000000
1999-01-01	11.1879999999999990
2000-01-01	11.4394000000000000
2001-01-01	12.6796000000000000
2002-01-01	9.8725300000000010
2003-01-01	9.1656800000000000
2004-01-01	20.3731000000000000
2005-01-01	19.8132000000000000
2006-01-01	20.6073000000000000
2007-01-01	16.4465000000000000
2008-01-01	11.3389000000000000
2009-01-01	11.3025000000000000
2010-01-01	9.4011200000000000
2011-01-01	7.3606300000000005
2012-01-01	7.4356000000000000
2013-01-01	8.3391600000000010
2014-01-01	7.9114500000000000
2015-01-01	9.9471800000000000
2016-01-01	15.1148000000000000