Year	Number
2004-01-01	117
2005-01-01	107
2006-01-01	87
2007-01-01	81
2008-01-01	76
2009-01-01	71
2010-01-01	66
2011-01-01	64
2012-01-01	58
2013-01-01	53
2014-01-01	45
2015-01-01	47
2016-01-01	41