Year	Number
2007-01-01	65012
2008-01-01	69090
2009-01-01	63872
2010-01-01	56480
2011-01-01	49223
2012-01-01	43801
2013-01-01	39449
2014-01-01	36461
2015-01-01	33890
2016-01-01	33729
2017-01-01	37894