Year	Number
2004-01-01	1225
2005-01-01	1225
2006-01-01	1225
2007-01-01	1225
2008-01-01	1260
2009-01-01	1966
2010-01-01	1992
2011-01-01	2082
2012-01-01	1997
2013-01-01	1910
2014-01-01	1855
2015-01-01	1810