Year	Number
2004-01-01	25
2005-01-01	41
2006-01-01	66
2007-01-01	98
2008-01-01	116
2009-01-01	64
2010-01-01	196
2011-01-01	178
2012-01-01	190
2013-01-01	216
2014-01-01	212
2015-01-01	209