Period	Persons
1967-01-01	196203
1972-01-01	229588
1977-01-01	303236
1982-01-01	385950
1987-01-01	449006
1992-01-01	522751
1997-01-01	597400
2002-01-01	732541
2007-01-01	1032353
2012-01-01	1317827