Year	Percent
2000-01-01	3.450
2001-01-01	3.575
2002-01-01	3.925
2003-01-01	4.375
2004-01-01	4.600
2005-01-01	4.550
2006-01-01	3.450
2007-01-01	2.575
2008-01-01	2.725
2009-01-01	3.575
2010-01-01	4.050
2011-01-01	3.425
2012-01-01	3.575
2013-01-01	3.600
2014-01-01	3.725
2015-01-01	4.525
2016-01-01	5.350
2017-01-01	4.575