Year	Number
2004-01-01	499700
2005-01-01	535031
2006-01-01	561076
2007-01-01	597890
2008-01-01	588409
2009-01-01	766591
2010-01-01	708987
2011-01-01	747475
2012-01-01	813275
2013-01-01	887899
2014-01-01	863399
2015-01-01	937710
2016-01-01	1094564