Year	Number
2007-01-01	2511970
2008-01-01	2671115
2009-01-01	2787891
2010-01-01	3217839
2011-01-01	3343609
2012-01-01	3187446
2013-01-01	2926246
2014-01-01	3094119
2015-01-01	3265627
2016-01-01	3176273