Year	Number
2004-01-01	6747
2005-01-01	6829
2006-01-01	7038
2007-01-01	7223
2008-01-01	7630
2009-01-01	7835
2010-01-01	8119
2011-01-01	8324
2012-01-01	8714
2013-01-01	9262
2014-01-01	9713
2015-01-01	10124
2016-01-01	10576