Year	Z-score
1996-01-01	8.959730000000000
1997-01-01	8.073939999999999
1998-01-01	8.845200000000000
1999-01-01	10.321900000000000
2000-01-01	9.427800000000000
2001-01-01	11.073800000000000
2002-01-01	11.015999999999998
2003-01-01	11.184800000000000
2004-01-01	15.174100000000000
2005-01-01	17.722700000000000
2006-01-01	20.331000000000000
2007-01-01	21.260600000000000
2008-01-01	20.550600000000000
2009-01-01	19.055600000000000
2010-01-01	22.076900000000000
2011-01-01	20.307500000000000
2012-01-01	20.229500000000000
2013-01-01	15.750000000000000
2014-01-01	17.684500000000000
2015-01-01	16.612600000000000
2016-01-01	16.562200000000000