Period	Persons
1967-01-01	100031
1972-01-01	118279
1977-01-01	138867
1982-01-01	160883
1987-01-01	184958
1992-01-01	205269
1997-01-01	223734
2002-01-01	245032
2007-01-01	260361
2012-01-01	273814