Year	Number
2004-01-01	666
2005-01-01	680
2006-01-01	682
2007-01-01	633
2008-01-01	654
2009-01-01	637
2010-01-01	640
2011-01-01	638
2012-01-01	614
2013-01-01	593
2014-01-01	574
2015-01-01	569
2016-01-01	505