Year	Number
2005-01-01	9787012
2006-01-01	10928714
2007-01-01	11993881
2008-01-01	13148637
2009-01-01	13240936
2010-01-01	12854406
2011-01-01	13031442
2012-01-01	12959433
2013-01-01	12454053
2014-01-01	11997471
2015-01-01	11371756
2016-01-01	11020607
2017-01-01	10635867