Year	Number
2004-01-01	34555
2005-01-01	36985
2006-01-01	37981
2007-01-01	39661
2008-01-01	41192
2009-01-01	44079
2010-01-01	59446
2011-01-01	61537
2012-01-01	63889
2013-01-01	75963
2014-01-01	87611
2015-01-01	107247
2016-01-01	134557