Period	Persons
1967-01-01	76951336
1972-01-01	78688452
1977-01-01	78159814
1982-01-01	78333366
1987-01-01	77839920
1992-01-01	80624598
1997-01-01	82034771
2002-01-01	82488495
2007-01-01	82266372
2012-01-01	80425823