Year	Z-score
1996-01-01	10.841400000000000
1997-01-01	10.720999999999998
1998-01-01	10.927300000000000
1999-01-01	12.841600000000000
2000-01-01	12.476200000000000
2001-01-01	13.623000000000000
2002-01-01	12.063300000000000
2003-01-01	10.913500000000000
2004-01-01	16.228500000000000
2005-01-01	17.324700000000000
2006-01-01	13.961200000000000
2007-01-01	13.562400000000000
2008-01-01	12.275800000000000
2009-01-01	12.730400000000000
2010-01-01	14.523500000000000
2011-01-01	14.875200000000000
2012-01-01	15.365800000000000
2013-01-01	15.447700000000000
2014-01-01	15.172400000000000
2015-01-01	15.092700000000000
2016-01-01	16.148900000000000