Period	Persons
1967-01-01	7376998
1972-01-01	7544201
1977-01-01	7568430
1982-01-01	7574140
1987-01-01	7574586
1992-01-01	7840709
1997-01-01	7968041
2002-01-01	8081957
2007-01-01	8300788
2012-01-01	8429991