Year	Number
2007-01-01	3263
2008-01-01	2961
2009-01-01	2853
2010-01-01	2754
2011-01-01	2743
2012-01-01	3060
2013-01-01	3525
2014-01-01	6370
2015-01-01	6974
2016-01-01	8289
2017-01-01	9269