Year	Number
2007-01-01	327.3466
2008-01-01	385.6867
2009-01-01	506.5195
2010-01-01	648.1643
2011-01-01	826.0204
2012-01-01	2039.6001
2013-01-01	2280.1540
2014-01-01	2301.0071
2015-01-01	2260.7240
2016-01-01	2888.4195
2017-01-01	2745.1867