Year	Z-score
1996-01-01	10.934100000000000
1997-01-01	5.722590000000000
1998-01-01	15.690200000000000
1999-01-01	6.746790000000000
2000-01-01	6.052370000000000
2001-01-01	5.654260000000000
2002-01-01	5.620590000000000
2003-01-01	5.647860000000000
2004-01-01	7.429630000000000
2005-01-01	7.007510000000001
2006-01-01	7.040439999999999
2007-01-01	7.518920000000000
2008-01-01	7.082980000000000
2009-01-01	7.550889999999999
2010-01-01	9.333000000000000
2011-01-01	8.577000000000000
2012-01-01	5.344150000000000
2013-01-01	7.631760000000001
2014-01-01	7.515710000000000
2015-01-01	7.694180000000000
2016-01-01	6.543120000000000