Year	Percent
1998-01-01	14.10000
1999-01-01	14.50000
2000-01-01	13.60000
2001-01-01	13.60000
2002-01-01	13.40000
2003-01-01	13.10000
2004-01-01	12.50000
2005-01-01	11.80000
2006-01-01	11.70000
2007-01-01	11.70000
2008-01-01	8.90000
2009-01-01	9.50000
2010-01-01	10.23390
2011-01-01	11.09060
2012-01-01	11.70290
2013-01-01	9.70417
2014-01-01	9.94815
2015-01-01	9.98739
2016-01-01	9.73959