Year	Number
2005-01-01	10
2006-01-01	10
2007-01-01	11
2008-01-01	22
2009-01-01	31
2010-01-01	40
2011-01-01	40
2012-01-01	42
2013-01-01	40
2014-01-01	40
2015-01-01	40
2016-01-01	40