Year	Number
2007-01-01	0.0000
2008-01-01	0.0000
2009-01-01	25.5658
2010-01-01	50.3841
2011-01-01	198.6015
2012-01-01	806.5326
2013-01-01	2167.3614
2014-01-01	3659.1049
2015-01-01	4722.0642
2016-01-01	5.9534