Year	Z-score
1999-01-01	0.7378490000000000
2000-01-01	0.7451390000000000
2001-01-01	1.6297600000000000
2002-01-01	1.7951800000000000
2003-01-01	2.4946800000000000
2004-01-01	2.8186400000000003
2005-01-01	4.9150100000000000
2006-01-01	6.3962200000000000
2007-01-01	6.9605500000000000
2008-01-01	9.9496100000000000
2009-01-01	6.9445600000000010
2010-01-01	5.1992100000000000
2011-01-01	2.9189700000000003
2012-01-01	2.7475400000000003
2013-01-01	2.8206100000000000
2014-01-01	2.9273599999999997
2015-01-01	3.3193599999999996
2016-01-01	2.9081799999999998