Year	Number
2004-01-01	3763665
2005-01-01	3857450
2006-01-01	3950264
2007-01-01	4118444
2008-01-01	4292334
2009-01-01	4418931
2010-01-01	4598565
2011-01-01	4385974
2012-01-01	5204055
2013-01-01	5745995
2014-01-01	6604229
2015-01-01	7518097
2016-01-01	9665070