Year	Z-score
1996-01-01	5.05171999999999950
1997-01-01	3.04468000000000000
1998-01-01	0.12882700000000000
1999-01-01	0.21380300000000002
2000-01-01	2.91669000000000000
2001-01-01	3.75160000000000000
2002-01-01	3.30871999999999970
2003-01-01	4.36073000000000000
2004-01-01	4.94463000000000000
2005-01-01	5.37573000000000000
2006-01-01	4.99771999999999900
2007-01-01	5.03791000000000000
2008-01-01	5.50811000000000000
2009-01-01	5.87019000000000000
2010-01-01	6.17859000000000000
2011-01-01	6.32794000000000000
2012-01-01	6.39251999999999900
2013-01-01	6.75183000000000000
2014-01-01	6.87636000000000100
2015-01-01	7.06540000000000000
2016-01-01	7.33277000000000000