Year	Number
2004-01-01	265
2005-01-01	269
2006-01-01	271
2007-01-01	279
2008-01-01	263
2009-01-01	261
2010-01-01	256
2011-01-01	234
2012-01-01	223
2013-01-01	245
2014-01-01	251
2015-01-01	254