Year	Number
2005-01-01	19239
2006-01-01	25031
2007-01-01	47990
2008-01-01	56026
2009-01-01	67057
2010-01-01	34643
2011-01-01	35272
2012-01-01	38984
2013-01-01	40665
2014-01-01	41395
2015-01-01	42341