Year	Number
2004-01-01	77
2005-01-01	79
2006-01-01	83
2007-01-01	83
2008-01-01	65
2009-01-01	66
2010-01-01	67
2011-01-01	66
2012-01-01	69
2013-01-01	69
2014-01-01	77
2015-01-01	69
2016-01-01	54