Year	Number
2007-01-01	156709
2008-01-01	351277
2009-01-01	322475
2010-01-01	302827
2011-01-01	279868
2012-01-01	294222
2013-01-01	285411
2014-01-01	272274
2015-01-01	267294
2016-01-01	281780
2017-01-01	330316