Period	Persons
1967-01-01	3862964
1972-01-01	4485775
1977-01-01	5160810
1982-01-01	5888343
1987-01-01	6846349
1992-01-01	7990968
1997-01-01	9164050
2002-01-01	10390050
2007-01-01	11904974
2012-01-01	13726021