Year	Z-score
1996-01-01	8.853870000000000
1997-01-01	8.082860000000000
1998-01-01	3.436440000000000
1999-01-01	5.396860000000000
2000-01-01	5.298960000000000
2001-01-01	5.753070000000000
2002-01-01	5.682320000000000
2003-01-01	5.589760000000000
2004-01-01	5.458170000000000
2005-01-01	5.497380000000001
2006-01-01	5.385700000000000
2007-01-01	5.764030000000000
2008-01-01	4.582140000000000
2009-01-01	2.907090000000000
2010-01-01	3.789260000000000
2011-01-01	5.587010000000000
2012-01-01	6.290820000000000
2013-01-01	6.627039999999999
2014-01-01	6.779850000000000
2015-01-01	7.454969999999999
2016-01-01	7.331970000000000