Year	Number
2004-01-01	109490
2005-01-01	169008
2006-01-01	265803
2007-01-01	407686
2008-01-01	348830
2009-01-01	284583
2010-01-01	202411
2011-01-01	234205
2012-01-01	254917
2013-01-01	244610
2014-01-01	265509
2015-01-01	292185
2016-01-01	262566
2017-01-01	324064