Year	Number
2004-01-01	74091
2005-01-01	86460
2006-01-01	108747
2007-01-01	172932
2008-01-01	254256
2009-01-01	324506
2010-01-01	382903
2011-01-01	402007
2012-01-01	429794
2013-01-01	442000
2014-01-01	445675
2015-01-01	334769
2016-01-01	228482
2017-01-01	272022