Year	Number
2004-01-01	44825
2005-01-01	46591
2006-01-01	48006
2007-01-01	48032
2008-01-01	45001
2009-01-01	45181
2010-01-01	47526
2011-01-01	70926
2012-01-01	63341
2013-01-01	68312
2014-01-01	118206
2015-01-01	70941
2016-01-01	137712