Year	Percent
2001-01-01	3.550
2002-01-01	3.625
2003-01-01	4.350
2004-01-01	5.175
2005-01-01	5.925
2006-01-01	5.475
2007-01-01	4.725
2008-01-01	4.650
2009-01-01	5.975
2010-01-01	6.625
2011-01-01	5.850
2012-01-01	5.750
2013-01-01	6.125
2014-01-01	5.900
2015-01-01	5.775
2016-01-01	5.325
2017-01-01	5.225