Year	Percent
2000-01-01	11.675
2001-01-01	12.325
2002-01-01	12.775
2003-01-01	12.900
2004-01-01	12.225
2005-01-01	11.250
2006-01-01	11.850
2007-01-01	12.075
2008-01-01	11.200
2009-01-01	10.625
2010-01-01	10.350
2011-01-01	10.275
2012-01-01	9.950
2013-01-01	9.950
2014-01-01	9.525
2015-01-01	9.425
2016-01-01	9.250
2017-01-01	8.925