Period	Persons
1967-01-01	8785648
1972-01-01	9188968
1977-01-01	9463000
1982-01-01	9776000
1987-01-01	10111000
1992-01-01	10216000
1997-01-01	10117000
2002-01-01	9865000
2007-01-01	9560000
2012-01-01	9464000