Year	Number
2004-01-01	439842
2005-01-01	469349
2006-01-01	481651
2007-01-01	500210
2008-01-01	500619
2009-01-01	659396
2010-01-01	602469
2011-01-01	640238
2012-01-01	686103
2013-01-01	767204
2014-01-01	768277
2015-01-01	846807
2016-01-01	975772