Year	Number
2004-01-01	2641
2005-01-01	2588
2006-01-01	2624
2007-01-01	2692
2008-01-01	2674
2009-01-01	2462
2010-01-01	2494
2011-01-01	2511
2012-01-01	2474
2013-01-01	2493
2014-01-01	2473
2015-01-01	2395
2016-01-01	2248