Year	Number
2004-01-01	9521034
2005-01-01	9823703
2006-01-01	9814635
2007-01-01	10017136
2008-01-01	10098297
2009-01-01	9889191
2010-01-01	9730776
2011-01-01	9569021
2012-01-01	9238798
2013-01-01	9481008
2014-01-01	9346581
2015-01-01	9257378
2016-01-01	9165630
2017-01-01	8410551