Year	Number
2004-01-01	3659720
2005-01-01	3678410
2006-01-01	3706934
2007-01-01	1543473
2008-01-01	1616523
2009-01-01	706516
2010-01-01	1254993
2011-01-01	1020815
2012-01-01	1089281
2013-01-01	1430742
2014-01-01	785580
2015-01-01	781826
2016-01-01	1182391