Year	Number
2004-01-01	60
2005-01-01	64
2006-01-01	67
2007-01-01	78
2008-01-01	84
2009-01-01	92
2010-01-01	95
2011-01-01	102
2012-01-01	109
2013-01-01	117
2014-01-01	127
2015-01-01	140