Year	Z-score
1996-01-01	9.880640000000000
1997-01-01	7.599920000000000
1998-01-01	5.632650000000000
1999-01-01	7.378830000000001
2000-01-01	9.018570000000000
2001-01-01	8.258070000000000
2002-01-01	9.760240000000000
2003-01-01	10.566600000000000
2004-01-01	12.041700000000000
2005-01-01	12.181900000000000
2006-01-01	11.876300000000000
2007-01-01	9.965860000000001
2008-01-01	12.052999999999999
2009-01-01	13.060200000000000
2010-01-01	13.231000000000000
2011-01-01	12.894600000000000
2012-01-01	14.642400000000000
2013-01-01	14.046300000000000
2014-01-01	14.754300000000000
2015-01-01	14.604800000000000
2016-01-01	13.929500000000000