Year	Number
2004-01-01	106609
2005-01-01	163068
2006-01-01	253009
2007-01-01	383565
2008-01-01	330341
2009-01-01	274427
2010-01-01	194156
2011-01-01	225593
2012-01-01	247615
2013-01-01	237451
2014-01-01	258392
2015-01-01	284217
2016-01-01	258821
2017-01-01	318921