Year	Percent
1998-01-01	6.5000
1999-01-01	3.8000
2000-01-01	3.8000
2001-01-01	3.8000
2002-01-01	3.8000
2003-01-01	3.8000
2004-01-01	3.8000
2005-01-01	3.8000
2006-01-01	3.8000
2007-01-01	3.8000
2008-01-01	3.8000
2009-01-01	3.8000
2010-01-01	10.3042
2011-01-01	10.0198
2012-01-01	10.0617
2013-01-01	10.6135
2014-01-01	10.3462
2015-01-01	11.1089
2016-01-01	12.5169