Year	Percent
2005-01-01	24.375
2006-01-01	23.650
2007-01-01	23.350
2008-01-01	22.725
2009-01-01	22.325
2010-01-01	21.825
2011-01-01	21.600
2012-01-01	20.975
2013-01-01	20.775
2014-01-01	20.525
2015-01-01	20.550
2016-01-01	20.450
2017-01-01	20.250