Year	Number
2006-01-01	0.1661
2007-01-01	0.2284
2008-01-01	0.3530
2009-01-01	0.6541
2010-01-01	0.8409
2011-01-01	0.8929
2012-01-01	0.9032
2013-01-01	0.9655
2014-01-01	0.9759