Year	Number
2007-01-01	7512127
2008-01-01	7903687
2009-01-01	8157065
2010-01-01	8253320
2011-01-01	11326958
2012-01-01	11437787
2013-01-01	11465814
2014-01-01	11325503
2015-01-01	11248748
2016-01-01	11359086
2017-01-01	11293437