Year	Number
2004-01-01	76
2005-01-01	80
2006-01-01	87
2007-01-01	87
2008-01-01	87
2009-01-01	86
2010-01-01	84
2011-01-01	85
2012-01-01	84
2013-01-01	84
2014-01-01	83
2015-01-01	48
2016-01-01	47