Year	Percent
2006-01-01	3.625
2007-01-01	3.525
2008-01-01	4.375
2009-01-01	5.675
2010-01-01	5.025
2011-01-01	4.350
2012-01-01	3.900
2013-01-01	4.650
2014-01-01	6.000
2015-01-01	6.675
2016-01-01	6.175
2017-01-01	6.525