Year	Number
2004-01-01	10502
2005-01-01	12077
2006-01-01	15140
2007-01-01	14945
2008-01-01	7442
2009-01-01	7892
2010-01-01	9376
2011-01-01	16442
2012-01-01	30948
2013-01-01	108427
2014-01-01	95099
2015-01-01	117616
2016-01-01	139395