Year	Percent
2000-01-01	1.850
2001-01-01	1.375
2002-01-01	1.950
2003-01-01	3.100
2004-01-01	3.700
2005-01-01	3.775
2006-01-01	2.925
2007-01-01	2.025
2008-01-01	1.650
2009-01-01	2.575
2010-01-01	3.550
2011-01-01	3.425
2012-01-01	4.200
2013-01-01	5.875
2014-01-01	5.800
2015-01-01	4.975
2016-01-01	3.950
2017-01-01	3.275