Period	Persons
1967-01-01	52900500
1972-01-01	54381345
1977-01-01	55955411
1982-01-01	56543548
1987-01-01	56601931
1992-01-01	56797087
1997-01-01	56890372
2002-01-01	57157406
2007-01-01	59375289
2012-01-01	59539717