Year	Number
2005-01-01	100
2006-01-01	1385
2007-01-01	1275
2008-01-01	12463
2009-01-01	12854
2010-01-01	12514
2011-01-01	13361
2012-01-01	12125
2013-01-01	17057
2014-01-01	22151
2015-01-01	21103
2016-01-01	51481