Year	Number
2004-01-01	97125
2005-01-01	144478
2006-01-01	291120
2007-01-01	536159
2008-01-01	718415
2009-01-01	835211
2010-01-01	1032302
2011-01-01	1416354
2012-01-01	1509444
2013-01-01	1915599
2014-01-01	2157993
2015-01-01	2054574
2016-01-01	2160358