Year	Number
2004-01-01	801
2005-01-01	786
2006-01-01	771
2007-01-01	755
2008-01-01	726
2009-01-01	696
2010-01-01	671
2011-01-01	638
2012-01-01	610
2013-01-01	590
2014-01-01	572
2015-01-01	552
2016-01-01	521