Year	Number
2004-01-01	11779
2005-01-01	13216
2006-01-01	14960
2007-01-01	18091
2008-01-01	20740
2009-01-01	25935
2010-01-01	32108
2011-01-01	41502
2012-01-01	54066
2013-01-01	89734
2014-01-01	70257
2015-01-01	104013
2016-01-01	96915