Year	Number
2004-01-01	212221
2005-01-01	284682
2006-01-01	461205
2007-01-01	864678
2008-01-01	1238745
2009-01-01	1113956
2010-01-01	1315048
2011-01-01	1670090
2012-01-01	1814364
2013-01-01	2356728
2014-01-01	2772086
2015-01-01	2863967
2016-01-01	3066796