Year	Number
2007-01-01	892445
2008-01-01	1031965
2009-01-01	1143477
2010-01-01	1291496
2011-01-01	1127674
2012-01-01	1893694
2013-01-01	2154904
2014-01-01	2364943
2015-01-01	2691649
2016-01-01	3473934
2017-01-01	3850947