Year	Number
2008-01-01	1417423
2009-01-01	1401918
2010-01-01	1356708
2011-01-01	1443662
2012-01-01	1541708
2013-01-01	1773119
2014-01-01	1799285
2015-01-01	1750469
2016-01-01	1752598