Year	Persons
2004-01-01	16873613
2005-01-01	17341206
2006-01-01	17422712
2007-01-01	18274937
2008-01-01	18852017
2009-01-01	19139988
2010-01-01	20100029
2011-01-01	21740000
2012-01-01	23121000