Year	Number
2005-01-01	1632
2006-01-01	27024
2007-01-01	61158
2008-01-01	81648
2009-01-01	77269
2010-01-01	88785
2011-01-01	112988
2012-01-01	147390
2013-01-01	205494
2014-01-01	274336
2015-01-01	304687
2016-01-01	321691