Year	Number
2004-01-01	76606
2005-01-01	110692
2006-01-01	159188
2007-01-01	215297
2008-01-01	262268
2009-01-01	249441
2010-01-01	238473
2011-01-01	209913
2012-01-01	226427
2013-01-01	49408
2014-01-01	54050
2015-01-01	53295
2016-01-01	47043
2017-01-01	40107