Year	Number
2005-01-01	2347868
2006-01-01	2771385
2007-01-01	3043150
2008-01-01	3971605
2009-01-01	4255779
2010-01-01	5721153
2011-01-01	6643057
2012-01-01	7468585
2013-01-01	7925722
2014-01-01	8246818
2015-01-01	11492635
2016-01-01	11085266