Year	Number
2004-01-01	27423
2005-01-01	39463
2006-01-01	52346
2007-01-01	55027
2008-01-01	62728
2009-01-01	70908
2010-01-01	93010
2011-01-01	113606
2012-01-01	124655
2013-01-01	125417
2014-01-01	128399
2015-01-01	135969
2016-01-01	179509