Year	Percent
2003-01-01	3.350
2004-01-01	3.000
2005-01-01	2.525
2006-01-01	2.825
2007-01-01	2.250
2008-01-01	2.925
2009-01-01	7.225
2010-01-01	7.575
2011-01-01	7.025
2012-01-01	6.000
2013-01-01	5.375
2014-01-01	4.925
2015-01-01	3.950
2016-01-01	2.975
2017-01-01	2.750