Year	Number
2004-01-01	237
2005-01-01	236
2006-01-01	196
2007-01-01	200
2008-01-01	200
2009-01-01	191
2010-01-01	192
2011-01-01	195
2012-01-01	196
2013-01-01	202
2014-01-01	200
2015-01-01	203
2016-01-01	200