Year	Percent
1996-01-01	20.965400
1997-01-01	17.342400
1998-01-01	17.950800
1999-01-01	10.236500
2000-01-01	18.040300
2001-01-01	8.472570
2002-01-01	9.896840
2003-01-01	10.814900
2004-01-01	34.455200
2005-01-01	16.548900
2006-01-01	17.427300
2007-01-01	19.688900
2008-01-01	4.023070
2009-01-01	-1.548920
2010-01-01	-0.294704
2011-01-01	1.366830
2012-01-01	-4.768880
2013-01-01	3.787340
2014-01-01	4.604000
2015-01-01	7.306230
2016-01-01	4.029040