Year	Z-score
1996-01-01	9.8417600000000000
1997-01-01	10.3744000000000000
1998-01-01	10.0187000000000000
1999-01-01	11.4253000000000000
2000-01-01	12.2359000000000000
2001-01-01	14.6946000000000000
2002-01-01	15.6536000000000000
2003-01-01	18.6018000000000000
2004-01-01	10.3880000000000000
2005-01-01	6.5543000000000000
2006-01-01	5.9965300000000000
2007-01-01	6.3173699999999995
2008-01-01	3.9078900000000000
2009-01-01	5.1547600000000000
2010-01-01	6.7374800000000010
2011-01-01	7.2194100000000010
2012-01-01	6.9247800000000000
2013-01-01	7.6241600000000010
2014-01-01	9.2060500000000000
2015-01-01	12.5714000000000000
2016-01-01	12.5268000000000000