Year	Number
2004-01-01	77
2005-01-01	181
2006-01-01	188
2007-01-01	313
2008-01-01	925
2009-01-01	591
2010-01-01	112
2011-01-01	83
2012-01-01	328
2013-01-01	2381
2014-01-01	4448
2015-01-01	5315
2016-01-01	12782