Year	Number
2007-01-01	1531831
2008-01-01	1403458
2009-01-01	1287433
2010-01-01	1312549
2011-01-01	1306666
2012-01-01	1385221
2013-01-01	1503186
2014-01-01	1601736
2015-01-01	1713261
2016-01-01	1804687
2017-01-01	1871727