Year	Percent
2000-01-01	6.075
2001-01-01	5.550
2002-01-01	5.675
2003-01-01	5.525
2004-01-01	5.075
2005-01-01	5.175
2006-01-01	5.700
2007-01-01	5.550
2008-01-01	6.075
2009-01-01	8.525
2010-01-01	8.600
2011-01-01	8.675
2012-01-01	8.350
2013-01-01	8.000
2014-01-01	6.375
2015-01-01	5.500
2016-01-01	4.950
2017-01-01	4.475