Period	Persons
1967-01-01	9580991
1972-01-01	9711115
1977-01-01	9830358
1982-01-01	9856303
1987-01-01	9870234
1992-01-01	10045158
1997-01-01	10181245
2002-01-01	10332785
2007-01-01	10625700
2012-01-01	11128246