Year	Z-score
1996-01-01	13.790600000000000
1997-01-01	15.202900000000000
1998-01-01	21.965999999999998
1999-01-01	22.236500000000000
2000-01-01	22.027800000000000
2001-01-01	14.125900000000000
2002-01-01	16.500700000000000
2003-01-01	15.938300000000000
2004-01-01	14.170800000000000
2005-01-01	12.841300000000000
2006-01-01	13.288900000000000
2007-01-01	12.009000000000000
2008-01-01	12.585200000000000
2009-01-01	13.110999999999999
2010-01-01	13.707200000000000
2011-01-01	17.342800000000000
2012-01-01	18.208900000000000
2013-01-01	17.232000000000000
2014-01-01	18.104300000000000
2015-01-01	18.008400000000000
2016-01-01	17.815700000000000