Year	Number
2004-01-01	385
2005-01-01	418
2006-01-01	324
2007-01-01	352
2008-01-01	379
2009-01-01	374
2010-01-01	365
2011-01-01	378
2012-01-01	377
2013-01-01	378
2014-01-01	395
2015-01-01	346
2016-01-01	349
2017-01-01	333