Year	Percent
2000-01-01	1.925
2001-01-01	1.525
2002-01-01	2.125
2003-01-01	2.625
2004-01-01	3.800
2005-01-01	4.350
2006-01-01	4.075
2007-01-01	3.850
2008-01-01	3.350
2009-01-01	3.250
2010-01-01	4.250
2011-01-01	4.550
2012-01-01	5.325
2013-01-01	7.250
2014-01-01	8.125
2015-01-01	8.400
2016-01-01	6.950
2017-01-01	5.325