Year	Number
2004-01-01	282
2005-01-01	287
2006-01-01	291
2007-01-01	290
2008-01-01	295
2009-01-01	301
2010-01-01	309
2011-01-01	308
2012-01-01	310
2013-01-01	303
2014-01-01	304
2015-01-01	310
2016-01-01	301