Year	Number
2004-01-01	6304
2005-01-01	6404
2006-01-01	6565
2007-01-01	6727
2008-01-01	6902
2009-01-01	7244
2010-01-01	7641
2011-01-01	8009
2012-01-01	8382
2013-01-01	8724
2014-01-01	9111
2015-01-01	9468
2016-01-01	9722