Year	Number
2005-01-01	727453
2006-01-01	867718
2007-01-01	1050245
2008-01-01	1221814
2009-01-01	1754587
2010-01-01	1868302
2011-01-01	2207774
2012-01-01	2623012
2013-01-01	3068002
2014-01-01	3537824