Year	Number
2008-01-01	1474616
2009-01-01	1508996
2010-01-01	1548547
2011-01-01	1602533
2012-01-01	1644411
2013-01-01	1670450
2014-01-01	1706387
2015-01-01	1734336
2016-01-01	1872678