Year	Percent
2000-01-01	9.675
2001-01-01	8.175
2002-01-01	9.250
2003-01-01	9.925
2004-01-01	9.375
2005-01-01	8.500
2006-01-01	6.150
2007-01-01	5.675
2008-01-01	4.400
2009-01-01	5.525
2010-01-01	6.525
2011-01-01	6.175
2012-01-01	6.600
2013-01-01	6.925
2014-01-01	6.350
2015-01-01	4.850
2016-01-01	3.500
2017-01-01	3.075