Year	Number
2004-01-01	255
2005-01-01	255
2006-01-01	255
2007-01-01	255
2008-01-01	255
2009-01-01	261
2010-01-01	243
2011-01-01	240
2012-01-01	184
2013-01-01	129
2014-01-01	157
2015-01-01	141
2016-01-01	228