Year	Number
2004-01-01	1312
2005-01-01	1420
2006-01-01	1714
2007-01-01	1799
2008-01-01	1812
2009-01-01	1420
2010-01-01	1497
2011-01-01	1517
2012-01-01	1518
2013-01-01	2289
2014-01-01	2443
2015-01-01	2444
2016-01-01	2468