Year	Number
2004-01-01	146
2005-01-01	144
2006-01-01	139
2007-01-01	128
2008-01-01	122
2009-01-01	119
2010-01-01	119
2011-01-01	113
2012-01-01	110
2013-01-01	110
2014-01-01	109
2015-01-01	108
2016-01-01	108