Year	Number
2004-01-01	65
2005-01-01	66
2006-01-01	64
2007-01-01	66
2008-01-01	66
2009-01-01	64
2010-01-01	68
2011-01-01	75
2012-01-01	77
2013-01-01	79
2014-01-01	79
2015-01-01	129