Year	Number
2007-01-01	167051
2008-01-01	174631
2009-01-01	178140
2010-01-01	183212
2011-01-01	187463
2012-01-01	285172
2013-01-01	277272
2014-01-01	275460
2015-01-01	271426
2016-01-01	271473
2017-01-01	276660