Year	Percent
2000-01-01	7.100000000000000
2001-01-01	7.100000000000000
2002-01-01	7.100000000000000
2003-01-01	7.100000000000000
2004-01-01	7.100000000000000
2005-01-01	7.100000000000000
2006-01-01	7.100000000000000
2007-01-01	7.100000000000000
2008-01-01	7.100000000000000
2009-01-01	7.100000000000000
2010-01-01	9.780460000000000
2011-01-01	9.435170000000000
2012-01-01	9.826189999999999
2013-01-01	10.635300000000000
2014-01-01	11.216400000000000
2015-01-01	11.592900000000000
2016-01-01	10.731900000000000