Year	Number
2004-01-01	87
2005-01-01	101
2006-01-01	108
2007-01-01	115
2008-01-01	126
2009-01-01	134
2010-01-01	142
2011-01-01	143
2012-01-01	118
2013-01-01	99
2014-01-01	98
2015-01-01	92
2016-01-01	88
2017-01-01	88