Year	Number
2004-01-01	351
2005-01-01	338
2006-01-01	365
2007-01-01	353
2008-01-01	355
2009-01-01	347
2010-01-01	344
2011-01-01	327
2012-01-01	256
2013-01-01	239
2014-01-01	220
2015-01-01	198