Year	Number
2004-01-01	40267
2005-01-01	50791
2006-01-01	55916
2007-01-01	64708
2008-01-01	73527
2009-01-01	84849
2010-01-01	101503
2011-01-01	94945
2012-01-01	108521
2013-01-01	149533
2014-01-01	286340
2015-01-01	207714
2016-01-01	608317