Year	Number
2004-01-01	4377
2005-01-01	4296
2006-01-01	4158
2007-01-01	4083
2008-01-01	4037
2009-01-01	4001
2010-01-01	3939
2011-01-01	3893
2012-01-01	3855
2013-01-01	3819
2014-01-01	3755
2015-01-01	3684
2016-01-01	3660