Year	Number
2004-01-01	98862
2005-01-01	107177
2006-01-01	154809
2007-01-01	184382
2008-01-01	211645
2009-01-01	260026
2010-01-01	308075
2011-01-01	348804
2012-01-01	408844
2013-01-01	443562
2014-01-01	546690
2015-01-01	555082
2016-01-01	564539