Year	Percent
2006-01-01	0.58
2007-01-01	0.60
2008-01-01	0.68
2009-01-01	3.75
2010-01-01	3.98
2011-01-01	4.48
2012-01-01	4.83
2013-01-01	4.79
2014-01-01	5.15
2015-01-01	5.86