Period	Persons
1967-01-01	8263513
1972-01-01	9025344
1977-01-01	9633669
1982-01-01	9930589
1987-01-01	10285920
1992-01-01	10757891
1997-01-01	11024249
2002-01-01	11212125
2007-01-01	11301674
2012-01-01	11270957