Year	Number
2004-01-01	907
2005-01-01	877
2006-01-01	864
2007-01-01	852
2008-01-01	836
2009-01-01	784
2010-01-01	758
2011-01-01	1037
2012-01-01	1108
2013-01-01	1087
2014-01-01	1046
2015-01-01	982
2016-01-01	908
2017-01-01	871