Year	Number
2004-01-01	525620
2005-01-01	557925
2006-01-01	626088
2007-01-01	718026
2008-01-01	793289
2009-01-01	704489
2010-01-01	770769
2011-01-01	837521
2012-01-01	901953
2013-01-01	961972
2014-01-01	1036138
2015-01-01	1152521
2016-01-01	1257969