Year	Number
2007-01-01	807
2008-01-01	2011
2009-01-01	1449
2010-01-01	2365
2011-01-01	2908
2012-01-01	2845
2013-01-01	2924
2014-01-01	2388
2015-01-01	2004
2016-01-01	2127
2017-01-01	2198