Year	Number
2004-01-01	3669
2005-01-01	3669
2006-01-01	3720
2007-01-01	3762
2008-01-01	3796
2009-01-01	3809
2010-01-01	3869
2011-01-01	3957
2012-01-01	4037
2013-01-01	4098
2014-01-01	4147
2015-01-01	4215
2016-01-01	4330
2017-01-01	4400