Year	Number
2004-01-01	39278
2005-01-01	39075
2006-01-01	58998
2007-01-01	64262
2008-01-01	64894
2009-01-01	65246
2010-01-01	66332
2011-01-01	206086
2012-01-01	283240
2013-01-01	380010
2014-01-01	371408
2015-01-01	366662
2016-01-01	472314