Year	Number
2004-01-01	45
2005-01-01	44
2006-01-01	44
2007-01-01	47
2008-01-01	53
2009-01-01	95
2010-01-01	99
2011-01-01	124
2012-01-01	123
2013-01-01	115
2014-01-01	110
2015-01-01	111
2016-01-01	119