Year	Number
2004-01-01	28490
2005-01-01	38592
2006-01-01	44070
2007-01-01	41666
2008-01-01	46428
2009-01-01	49760
2010-01-01	52788
2011-01-01	101433
2012-01-01	86653
2013-01-01	156006
2014-01-01	164292
2015-01-01	154136
2016-01-01	178436