Year	Percent
2000-01-01	8.775
2001-01-01	8.575
2002-01-01	9.050
2003-01-01	10.475
2004-01-01	10.275
2005-01-01	10.075
2006-01-01	9.550
2007-01-01	9.175
2008-01-01	8.725
2009-01-01	9.150
2010-01-01	9.900
2011-01-01	10.400
2012-01-01	10.425
2013-01-01	10.950
2014-01-01	10.725
2015-01-01	10.975
2016-01-01	11.225
2017-01-01	12.150