Year	Number
2005-01-01	2964
2006-01-01	3454
2007-01-01	5942
2008-01-01	6615
2009-01-01	7811
2010-01-01	9777
2011-01-01	8300
2012-01-01	18915
2013-01-01	53918
2014-01-01	56769
2015-01-01	76403
2016-01-01	81789
2017-01-01	91614