Year	Number
2006-01-01	49235002
2007-01-01	52338236
2008-01-01	53601198
2009-01-01	54826254
2010-01-01	57239128
2011-01-01	60665180
2012-01-01	60617491
2013-01-01	62748773
2014-01-01	64398104
2015-01-01	65761527
2016-01-01	67561144