Period	Persons
1967-01-01	2397572
1972-01-01	2637861
1977-01-01	2957599
1982-01-01	3330947
1987-01-01	3800961
1992-01-01	4031730
1997-01-01	3928313
2002-01-01	4493047
2007-01-01	5416015
2012-01-01	5978727