Year	Percent
1999-01-01	10.6871
2000-01-01	10.7104
2001-01-01	10.9200
2002-01-01	10.9000
2003-01-01	11.1400
2004-01-01	9.9700
2005-01-01	11.9600
2006-01-01	14.4700
2007-01-01	14.3800
2008-01-01	12.2300
2009-01-01	13.3300
2010-01-01	11.7600
2011-01-01	7.5100
2012-01-01	8.5900
2013-01-01	8.9000
2014-01-01	10.1100
2015-01-01	10.1000
2016-01-01	9.9700