Year	Number
2007-01-01	1780534
2008-01-01	2521748
2009-01-01	3341567
2010-01-01	4280499
2011-01-01	5043341
2012-01-01	6153473
2013-01-01	7064068
2014-01-01	7978316
2015-01-01	8840007
2016-01-01	9631854