Period	Persons
1967-01-01	52995
1972-01-01	58563
1977-01-01	62934
1982-01-01	64817
1987-01-01	66449
1992-01-01	71306
1997-01-01	73814
2002-01-01	78338
2007-01-01	81812
2012-01-01	85284