Year	Percent
2001-01-01	10.875
2002-01-01	11.850
2003-01-01	12.825
2004-01-01	16.100
2005-01-01	21.600
2006-01-01	22.125
2007-01-01	19.800
2008-01-01	20.625
2009-01-01	23.625
2010-01-01	23.600
2011-01-01	22.250
2012-01-01	22.200
2013-01-01	22.250
2014-01-01	21.475
2015-01-01	19.500
2016-01-01	17.200
2017-01-01	16.950