Year	Number
2004-01-01	76550
2005-01-01	110510
2006-01-01	158624
2007-01-01	214137
2008-01-01	260333
2009-01-01	246964
2010-01-01	237094
2011-01-01	208266
2012-01-01	225117
2013-01-01	49408
2014-01-01	54050
2015-01-01	53295
2016-01-01	47043
2017-01-01	40107