Period	Persons
1967-01-01	3808277
1972-01-01	4482567
1977-01-01	5303836
1982-01-01	6235352
1987-01-01	7243918
1992-01-01	8229480
1997-01-01	9320089
2002-01-01	10625423
2007-01-01	12109620
2012-01-01	14075099