Year	Number
2004-01-01	1795
2005-01-01	1859
2006-01-01	1966
2007-01-01	2167
2008-01-01	2347
2009-01-01	2466
2010-01-01	2533
2011-01-01	2594
2012-01-01	2619
2013-01-01	2666
2014-01-01	2718
2015-01-01	2805