Year	Number
2004-01-01	29889
2005-01-01	37330
2006-01-01	51724
2007-01-01	53714
2008-01-01	57848
2009-01-01	65541
2010-01-01	79838
2011-01-01	110967
2012-01-01	107439
2013-01-01	113312
2014-01-01	114888
2015-01-01	129504
2016-01-01	139519