Year	Number
2004-01-01	10846
2005-01-01	120390
2006-01-01	188697
2007-01-01	241747
2008-01-01	330114
2009-01-01	368392
2010-01-01	426463
2011-01-01	524624
2012-01-01	665020
2013-01-01	618876
2014-01-01	595634
2015-01-01	669748
2016-01-01	677461