Year	Percent
2007-01-01	0.04
2008-01-01	0.04
2009-01-01	0.02
2010-01-01	0.01
2011-01-01	8.76
2012-01-01	5.80
2013-01-01	3.55
2014-01-01	2.46
2015-01-01	3.47