Year	Number
2004-01-01	125
2005-01-01	127
2006-01-01	142
2007-01-01	153
2008-01-01	158
2009-01-01	162
2010-01-01	166
2011-01-01	171
2012-01-01	173
2013-01-01	178
2014-01-01	189
2015-01-01	194
2016-01-01	224