Year	Number
2008-01-01	36562
2009-01-01	25050
2010-01-01	24984
2011-01-01	47398
2012-01-01	66990
2013-01-01	84156
2014-01-01	92941
2015-01-01	126075
2016-01-01	170657
2017-01-01	187601