Year	Number
2004-01-01	51011
2005-01-01	52107
2006-01-01	63974
2007-01-01	73849
2008-01-01	83869
2009-01-01	91481
2010-01-01	113884
2011-01-01	110540
2012-01-01	116122
2013-01-01	98871
2014-01-01	93492
2015-01-01	85175