Year	Percent
2008-01-01	1.31
2009-01-01	1.84
2010-01-01	2.16
2011-01-01	2.07
2012-01-01	2.41
2013-01-01	2.00
2014-01-01	1.69
2015-01-01	1.64
2016-01-01	1.60