Year	Percent
2000-01-01	16.150
2001-01-01	18.275
2002-01-01	20.000
2003-01-01	19.675
2004-01-01	19.000
2005-01-01	17.800
2006-01-01	13.875
2007-01-01	9.600
2008-01-01	7.125
2009-01-01	8.200
2010-01-01	9.675
2011-01-01	9.675
2012-01-01	10.100
2013-01-01	10.350
2014-01-01	9.000
2015-01-01	7.500
2016-01-01	6.175
2017-01-01	4.900