Period	Persons
1967-01-01	2190718
1972-01-01	2551425
1977-01-01	2974713
1982-01-01	3437017
1987-01-01	3877325
1992-01-01	4342319
1997-01-01	4849272
2002-01-01	5248577
2007-01-01	5595533
2012-01-01	5991733