Year	Number
2004-01-01	134
2005-01-01	127
2006-01-01	119
2007-01-01	113
2008-01-01	112
2009-01-01	83
2010-01-01	78
2011-01-01	71
2012-01-01	68
2013-01-01	66
2014-01-01	56
2015-01-01	47