Year	Number
2004-01-01	22307
2005-01-01	23804
2006-01-01	33106
2007-01-01	38804
2008-01-01	63597
2009-01-01	75648
2010-01-01	69772
2011-01-01	76900
2012-01-01	91310
2013-01-01	100785
2014-01-01	108989
2015-01-01	109086