Year	Number
2007-01-01	12100311
2008-01-01	13368368
2009-01-01	19169077
2010-01-01	27219837
2011-01-01	31731891
2012-01-01	52681740
2013-01-01	56982118
2014-01-01	58589468
2015-01-01	59983884
2016-01-01	84473114
2017-01-01	84410173