Year	Percent
2006-01-01	4.675
2007-01-01	4.450
2008-01-01	5.625
2009-01-01	7.275
2010-01-01	6.550
2011-01-01	5.525
2012-01-01	4.800
2013-01-01	5.650
2014-01-01	7.350
2015-01-01	7.925
2016-01-01	7.325
2017-01-01	7.725