Year	Number
2005-01-01	219
2006-01-01	207
2007-01-01	60
2008-01-01	86
2009-01-01	213
2010-01-01	613
2011-01-01	558
2012-01-01	572
2013-01-01	574
2014-01-01	651
2015-01-01	661
2016-01-01	584
2017-01-01	578