Year	Number
2004-01-01	33
2005-01-01	33
2006-01-01	35
2007-01-01	38
2008-01-01	42
2009-01-01	47
2010-01-01	49
2011-01-01	50
2012-01-01	45
2013-01-01	56
2014-01-01	63