Year	Number
2005-01-01	119472
2006-01-01	213197
2007-01-01	379194
2008-01-01	511234
2009-01-01	462808
2010-01-01	532721
2011-01-01	770931
2012-01-01	1076347
2013-01-01	1715578
2014-01-01	2119779