Year	Number
2007-01-01	32484
2008-01-01	80434
2009-01-01	105772
2010-01-01	156184
2011-01-01	241490
2012-01-01	348286
2013-01-01	332424
2014-01-01	571256
2015-01-01	530834
2016-01-01	1150945