Year	Number
2004-01-01	6
2005-01-01	8
2006-01-01	9
2007-01-01	10
2008-01-01	11
2009-01-01	13
2010-01-01	169
2011-01-01	162
2012-01-01	190
2013-01-01	192
2014-01-01	0
2015-01-01	5
2016-01-01	5
2017-01-01	5