Year	Number
2004-01-01	276
2005-01-01	267
2006-01-01	209
2007-01-01	233
2008-01-01	208
2009-01-01	186
2010-01-01	130
2011-01-01	297
2012-01-01	298
2013-01-01	809
2014-01-01	1137
2015-01-01	36
2016-01-01	37