Period	Persons
1967-01-01	4146104
1972-01-01	4780283
1977-01-01	5428547
1982-01-01	6100385
1987-01-01	6809797
1992-01-01	7540421
1997-01-01	8256496
2002-01-01	8935261
2007-01-01	9615015
2012-01-01	10276621