Period	Persons
1967-01-01	7867931
1972-01-01	8122300
1977-01-01	8251540
1982-01-01	8325263
1987-01-01	8397804
1992-01-01	8668067
1997-01-01	8846062
2002-01-01	8924958
2007-01-01	9148092
2012-01-01	9519374