Year	Percent
2000-01-01	2.450
2002-01-01	2.425
2003-01-01	2.200
2005-01-01	2.425
2006-01-01	2.400
2007-01-01	2.025
2008-01-01	2.800
2009-01-01	4.925
2010-01-01	6.725
2011-01-01	7.175
2012-01-01	7.525
2013-01-01	9.300
2014-01-01	8.200
2015-01-01	6.375
2016-01-01	5.425
2017-01-01	5.650