Year	Number
2004-01-01	50454918
2005-01-01	56614598
2006-01-01	59466167
2007-01-01	61885280
2008-01-01	66854632
2009-01-01	69182349
2010-01-01	78656987
2011-01-01	92347622
2012-01-01	97708147
2013-01-01	96247038
2014-01-01	96791198
2015-01-01	92979168
2016-01-01	92749536
2017-01-01	107068528