Year	Number
2004-01-01	44
2005-01-01	75
2006-01-01	93
2007-01-01	101
2008-01-01	127
2009-01-01	131
2010-01-01	154
2011-01-01	162
2012-01-01	192
2013-01-01	205
2014-01-01	254
2015-01-01	257
2016-01-01	262