Year	Percent
2000-01-01	4.375
2001-01-01	3.875
2002-01-01	4.000
2003-01-01	3.775
2004-01-01	3.475
2005-01-01	3.425
2006-01-01	4.000
2007-01-01	3.775
2008-01-01	4.150
2009-01-01	5.850
2010-01-01	6.100
2011-01-01	6.125
2012-01-01	5.975
2013-01-01	5.650
2014-01-01	4.600
2015-01-01	4.000
2016-01-01	3.650
2017-01-01	3.175