Year	Number
2004-01-01	758894
2005-01-01	803269
2006-01-01	744497
2007-01-01	777780
2008-01-01	879478
2009-01-01	1148797
2010-01-01	1471406
2011-01-01	2543382
2012-01-01	2187171
2013-01-01	2288787
2014-01-01	2573103
2015-01-01	2515467
2016-01-01	2905534