Year	Percent
2003-01-01	0.07638099999999999
2004-01-01	0.08690700000000000
2005-01-01	0.07012300000000000
2006-01-01	0.07274200000000000
2007-01-01	0.07633200000000001
2008-01-01	0.06279600000000000
2009-01-01	0.09866600000000000
2010-01-01	0.28139200000000003
2011-01-01	0.56135700000000000
2012-01-01	0.85347099999999990
2013-01-01	1.37232999999999980
2014-01-01	1.65840000000000000
2015-01-01	2.15382000000000000
2016-01-01	2.29580000000000000