Year	Number
2004-01-01	601
2005-01-01	609
2006-01-01	606
2007-01-01	637
2008-01-01	660
2009-01-01	682
2010-01-01	734
2011-01-01	770
2012-01-01	798
2013-01-01	820
2014-01-01	845
2015-01-01	869
2016-01-01	891