Year	Number
2004-01-01	107
2005-01-01	112
2006-01-01	112
2007-01-01	112
2008-01-01	113
2009-01-01	110
2010-01-01	108
2011-01-01	108
2012-01-01	96
2013-01-01	71
2014-01-01	70
2015-01-01	71