Year	Number
2007-01-01	2543912
2008-01-01	2692648
2009-01-01	2823027
2010-01-01	3242360
2011-01-01	3361507
2012-01-01	3211731
2013-01-01	3105943
2014-01-01	3133250
2015-01-01	3278648
2016-01-01	3186556