Year	Number
2004-01-01	7956
2005-01-01	7383
2006-01-01	7546
2007-01-01	7614
2008-01-01	7773
2009-01-01	7973
2010-01-01	8054
2011-01-01	8163
2012-01-01	8347
2013-01-01	8527
2014-01-01	8720
2015-01-01	8744
2016-01-01	8721
2017-01-01	8726