Year	Percent
2000-01-01	2.525
2001-01-01	2.650
2002-01-01	2.900
2003-01-01	3.650
2004-01-01	3.775
2005-01-01	3.850
2006-01-01	3.025
2007-01-01	1.875
2008-01-01	2.000
2009-01-01	2.775
2010-01-01	3.375
2011-01-01	2.850
2012-01-01	2.950
2013-01-01	2.850
2014-01-01	3.425
2015-01-01	4.200
2016-01-01	4.900
2017-01-01	3.975