Year	Number
2004-01-01	97619
2005-01-01	114946
2006-01-01	171931
2007-01-01	213945
2008-01-01	303278
2009-01-01	361505
2010-01-01	449730
2011-01-01	530716
2012-01-01	652754
2013-01-01	722650
2014-01-01	831048
2015-01-01	826090
2016-01-01	847167
2017-01-01	889898