Period	Persons
1967-01-01	8874520
1972-01-01	8630430
1977-01-01	9455675
1982-01-01	9911771
1987-01-01	10030031
1992-01-01	9952494
1997-01-01	10108977
2002-01-01	10419631
2007-01-01	10542964
2012-01-01	10514844