Period	Persons
1967-01-01	131401
1972-01-01	179224
1977-01-01	277750
1982-01-01	385184
1987-01-01	486555
1992-01-01	629373
1997-01-01	687897
2002-01-01	744434
2007-01-01	798690
2012-01-01	859652