Year	Number
2004-01-01	210
2005-01-01	215
2006-01-01	215
2007-01-01	189
2008-01-01	164
2009-01-01	159
2010-01-01	170
2011-01-01	170
2012-01-01	156
2013-01-01	130
2014-01-01	2655
2015-01-01	2968
2016-01-01	3283