Year	Number
2007-01-01	46027840
2008-01-01	55149490
2009-01-01	73635473
2010-01-01	95792516
2011-01-01	124074811
2012-01-01	311253784
2013-01-01	353377418
2014-01-01	361985131
2015-01-01	360810332
2016-01-01	467017768
2017-01-01	443858991