Year	Number
2004-01-01	263
2005-01-01	282
2006-01-01	282
2007-01-01	282
2008-01-01	267
2009-01-01	269
2010-01-01	273
2011-01-01	117
2012-01-01	125
2013-01-01	124
2014-01-01	118
2015-01-01	119
2016-01-01	130