Year	Z-score
1996-01-01	7.067960000000000
1997-01-01	6.542580000000000
1998-01-01	6.542580000000000
1999-01-01	6.542580000000000
2000-01-01	6.168310000000000
2001-01-01	8.657010000000001
2002-01-01	9.060920000000000
2003-01-01	9.709610000000001
2004-01-01	10.639900000000000
2005-01-01	10.680500000000000
2006-01-01	10.712100000000000
2007-01-01	11.363400000000000
2008-01-01	10.285600000000000
2009-01-01	8.924770000000000
2010-01-01	12.638800000000000
2011-01-01	10.877100000000000
2012-01-01	10.869600000000000
2013-01-01	10.935900000000000
2014-01-01	9.999970000000000
2015-01-01	9.268680000000000
2016-01-01	10.292000000000000