Year	Number
2004-01-01	2
2005-01-01	2
2006-01-01	2
2007-01-01	2
2008-01-01	2
2009-01-01	2
2010-01-01	2
2011-01-01	2
2012-01-01	6
2013-01-01	69
2014-01-01	98
2015-01-01	103
2016-01-01	72