Year	Number
2004-01-01	42
2005-01-01	44
2006-01-01	51
2007-01-01	62
2008-01-01	77
2009-01-01	87
2010-01-01	96
2011-01-01	96
2012-01-01	111
2013-01-01	113
2014-01-01	114
2015-01-01	116
2016-01-01	117