Year	Number
2004-01-01	490
2005-01-01	529
2006-01-01	534
2007-01-01	464
2008-01-01	474
2009-01-01	125
2010-01-01	125
2011-01-01	125
2012-01-01	125
2013-01-01	126
2014-01-01	126
2015-01-01	127
2016-01-01	105