Year	Number
2004-01-01	14
2005-01-01	26
2006-01-01	28
2007-01-01	38
2008-01-01	58
2009-01-01	63
2010-01-01	79
2011-01-01	87
2012-01-01	90
2013-01-01	86
2014-01-01	84
2015-01-01	76
2016-01-01	67