Year	Percent
2000-01-01	4.70
2001-01-01	5.25
2002-01-01	7.41
2003-01-01	9.20
2004-01-01	9.17
2005-01-01	9.85
2006-01-01	9.73
2007-01-01	9.74
2008-01-01	9.99
2009-01-01	10.09
2010-01-01	10.01
2011-01-01	10.80
2012-01-01	11.56
2013-01-01	11.69
2014-01-01	11.30
2015-01-01	10.51
2016-01-01	10.30