Year	Percent
1998-01-01	8.70000
1999-01-01	8.90000
2000-01-01	9.10000
2001-01-01	9.80000
2002-01-01	10.10000
2003-01-01	9.30000
2004-01-01	9.80000
2005-01-01	9.20000
2006-01-01	9.50000
2007-01-01	8.80000
2008-01-01	8.30000
2009-01-01	10.20000
2010-01-01	9.97965
2011-01-01	10.56030
2012-01-01	10.41560
2013-01-01	10.14690
2014-01-01	10.66860
2015-01-01	10.08670
2016-01-01	11.41750