Period	Persons
1967-01-01	4449367
1972-01-01	4596622
1977-01-01	4840501
1982-01-01	5055099
1987-01-01	5222840
1992-01-01	5305016
1997-01-01	5383291
2002-01-01	5376912
2007-01-01	5374622
2012-01-01	5407579