Year	Number
2006-01-01	50026049
2007-01-01	53185763
2008-01-01	54508025
2009-01-01	55737742
2010-01-01	58191063
2011-01-01	61690823
2012-01-01	61651239
2013-01-01	63872336
2014-01-01	65560268
2015-01-01	66997861
2016-01-01	68837668