Year	Percent
2000-01-01	27.725
2001-01-01	28.375
2002-01-01	28.350
2003-01-01	27.475
2004-01-01	27.825
2005-01-01	27.875
2006-01-01	26.000
2007-01-01	25.375
2008-01-01	25.000
2009-01-01	26.100
2010-01-01	26.475
2011-01-01	26.100
2012-01-01	24.075
2013-01-01	24.050
2014-01-01	23.025
2015-01-01	23.100
2016-01-01	22.275
2017-01-01	23.025