Year	Number
2004-01-01	113088
2005-01-01	127797
2006-01-01	147077
2007-01-01	241552
2008-01-01	277565
2009-01-01	284301
2010-01-01	292283
2011-01-01	196881
2012-01-01	216930
2013-01-01	228906
2014-01-01	207177
2015-01-01	215354
2016-01-01	222304
2017-01-01	231935