Year	Number
2004-01-01	165962
2005-01-01	162367
2006-01-01	193294
2007-01-01	212409
2008-01-01	721739
2009-01-01	667705
2010-01-01	543946
2011-01-01	562839
2012-01-01	567780
2013-01-01	612223
2014-01-01	956380
2015-01-01	782162