Year	Z-score
1996-01-01	15.102100000000000
1997-01-01	13.351700000000000
1998-01-01	15.846800000000000
1999-01-01	15.954200000000000
2000-01-01	14.564100000000000
2001-01-01	10.909700000000000
2002-01-01	13.425500000000000
2003-01-01	6.975060000000001
2004-01-01	19.636700000000000
2005-01-01	16.461000000000000
2006-01-01	17.291600000000000
2007-01-01	20.435800000000000
2008-01-01	21.654800000000000
2009-01-01	22.848700000000000
2010-01-01	20.035200000000000
2011-01-01	19.256700000000000
2012-01-01	20.782900000000000
2013-01-01	20.782900000000000
2014-01-01	9.108780000000000
2015-01-01	9.672850000000000