Year	Number
2004-01-01	6953391
2005-01-01	7456059
2006-01-01	7633896
2007-01-01	7418006
2008-01-01	7488112
2009-01-01	7681777
2010-01-01	7902142
2011-01-01	7225105
2012-01-01	7510131
2013-01-01	7027565
2014-01-01	6968433
2015-01-01	6806517
2016-01-01	7087375