Year	Number
2004-01-01	404
2005-01-01	393
2006-01-01	353
2007-01-01	349
2008-01-01	344
2009-01-01	333
2010-01-01	334
2011-01-01	334
2012-01-01	333
2013-01-01	343
2014-01-01	341
2015-01-01	349
2016-01-01	338