Year	Percent
2001-01-01	5.000
2002-01-01	5.200
2003-01-01	5.550
2004-01-01	5.800
2005-01-01	5.225
2006-01-01	4.850
2007-01-01	4.375
2008-01-01	4.050
2009-01-01	5.875
2010-01-01	6.625
2011-01-01	5.900
2012-01-01	5.750
2013-01-01	5.850
2014-01-01	6.200
2015-01-01	6.050
2016-01-01	6.150
2017-01-01	5.750