Year	Number
2004-01-01	1196
2005-01-01	1156
2006-01-01	1108
2007-01-01	1059
2008-01-01	1008
2009-01-01	945
2010-01-01	877
2011-01-01	826
2012-01-01	771
2013-01-01	724
2014-01-01	694
2015-01-01	654
2016-01-01	597
2017-01-01	272