Year	Percent
2000-01-01	5.050
2001-01-01	4.425
2002-01-01	4.550
2003-01-01	4.350
2004-01-01	4.275
2005-01-01	4.325
2006-01-01	5.025
2007-01-01	5.025
2008-01-01	5.150
2009-01-01	6.525
2010-01-01	7.000
2011-01-01	7.475
2012-01-01	7.525
2013-01-01	7.175
2014-01-01	5.975
2015-01-01	5.225
2016-01-01	4.775
2017-01-01	4.300