Period	Persons
1967-01-01	5498558
1972-01-01	5893113
1977-01-01	6396391
1982-01-01	7004456
1987-01-01	7613990
1992-01-01	8322743
1997-01-01	9462256
2002-01-01	10882662
2007-01-01	12725629
2012-01-01	14853572