Year	Percent
2005-01-01	22.700
2006-01-01	22.425
2007-01-01	22.400
2008-01-01	22.150
2009-01-01	22.375
2010-01-01	22.375
2011-01-01	22.525
2012-01-01	22.175
2013-01-01	22.025
2014-01-01	21.900
2015-01-01	21.725
2016-01-01	21.475
2017-01-01	21.150