Year	Number
2004-01-01	2908100
2005-01-01	2970326
2006-01-01	3203739
2007-01-01	3436400
2008-01-01	3699349
2009-01-01	3493866
2010-01-01	3518289
2011-01-01	3505002
2012-01-01	3400201
2013-01-01	3336405
2014-01-01	3309737
2015-01-01	3301601
2016-01-01	3256705
2017-01-01	3411394