Period	Persons
1967-01-01	1319350
1972-01-01	1392518
1977-01-01	1450211
1982-01-01	1498414
1987-01-01	1552221
1992-01-01	1533091
1997-01-01	1399535
2002-01-01	1367508
2007-01-01	1342330
2012-01-01	1329301