Year	Percent
2000-01-01	2.700
2001-01-01	2.625
2002-01-01	2.500
2003-01-01	2.650
2004-01-01	2.775
2005-01-01	3.000
2006-01-01	2.425
2007-01-01	2.425
2008-01-01	3.625
2009-01-01	7.550
2010-01-01	10.125
2011-01-01	11.400
2012-01-01	12.700
2013-01-01	11.875
2014-01-01	10.525
2015-01-01	8.750
2016-01-01	7.125
2017-01-01	5.825