Year	Number
2004-01-01	5379085
2005-01-01	5951774
2006-01-01	6552413
2007-01-01	8014475
2008-01-01	8380157
2009-01-01	8134247
2010-01-01	8145149
2011-01-01	6656128
2012-01-01	6732453
2013-01-01	8053032
2014-01-01	8382238
2015-01-01	8950674
2016-01-01	9647978