Year	Number
2004-01-01	186
2005-01-01	186
2006-01-01	186
2007-01-01	184
2008-01-01	184
2009-01-01	184
2010-01-01	179
2011-01-01	144
2012-01-01	143
2013-01-01	77
2014-01-01	107
2015-01-01	113
2016-01-01	75