Year	Number
2005-01-01	5914
2006-01-01	7147
2007-01-01	8235
2008-01-01	10111
2009-01-01	9389
2010-01-01	9554
2011-01-01	9417
2012-01-01	9734
2013-01-01	9469
2014-01-01	9719
2015-01-01	10055
2016-01-01	10217
2017-01-01	11659