Year	Number
2008-01-01	1173758
2009-01-01	1266593
2010-01-01	1537657
2011-01-01	1725870
2012-01-01	1621499
2013-01-01	1598571
2014-01-01	1460296
2015-01-01	1359803
2016-01-01	1268771