Year	Z-score
1996-01-01	9.9041100000000010
1997-01-01	10.5424000000000000
1998-01-01	12.2959000000000000
1999-01-01	11.4790000000000010
2000-01-01	9.0981100000000000
2001-01-01	8.1190199999999990
2002-01-01	7.8223600000000010
2003-01-01	9.9979200000000000
2004-01-01	10.2551000000000000
2005-01-01	11.5509999999999980
2006-01-01	13.4564000000000000
2007-01-01	14.4344000000000000
2008-01-01	8.5824199999999990
2009-01-01	11.2624000000000000
2010-01-01	10.1367000000000000
2011-01-01	8.8460600000000010
2012-01-01	10.1191000000000000
2013-01-01	7.6670300000000005
2014-01-01	15.5384000000000000