Year	Number
2004-01-01	203
2005-01-01	227
2006-01-01	245
2007-01-01	259
2008-01-01	254
2009-01-01	213
2010-01-01	202
2011-01-01	178
2012-01-01	163
2013-01-01	140
2014-01-01	122
2015-01-01	107
2016-01-01	99