Period	Persons
1967-01-01	1315119
1972-01-01	1497356
1977-01-01	1724313
1982-01-01	2036325
1987-01-01	2196204
1992-01-01	2028672
1997-01-01	2365290
2002-01-01	3070673
2007-01-01	3522294
2012-01-01	4190435