Year	Percent
1998-01-01	10.4000
1999-01-01	11.4000
2000-01-01	9.9000
2001-01-01	7.0000
2002-01-01	10.4000
2003-01-01	10.0000
2004-01-01	10.1000
2005-01-01	10.1000
2006-01-01	10.0000
2007-01-01	10.1000
2008-01-01	10.2000
2009-01-01	12.7000
2010-01-01	12.0034
2011-01-01	11.4769
2012-01-01	11.7441
2013-01-01	11.9557
2014-01-01	22.5048
2015-01-01	24.2208
2016-01-01	26.8171