Year	Number
2004-01-01	329528
2005-01-01	334135
2006-01-01	320916
2007-01-01	351180
2008-01-01	402755
2009-01-01	423576
2010-01-01	437108
2011-01-01	497228
2012-01-01	425874
2013-01-01	420998
2014-01-01	431073
2015-01-01	276650
2016-01-01	301987