Year	Percent
2000-01-01	2.425
2001-01-01	1.800
2002-01-01	2.325
2003-01-01	3.250
2004-01-01	3.950
2005-01-01	4.075
2006-01-01	3.350
2007-01-01	2.500
2008-01-01	2.025
2009-01-01	2.750
2010-01-01	3.625
2011-01-01	3.925
2012-01-01	4.625
2013-01-01	6.025
2014-01-01	6.175
2015-01-01	5.600
2016-01-01	4.650
2017-01-01	3.700