Period	Persons
1967-01-01	4835354
1972-01-01	4991596
1977-01-01	5088419
1982-01-01	5117810
1987-01-01	5127024
1992-01-01	5171370
1997-01-01	5284991
2002-01-01	5375931
2007-01-01	5461438
2012-01-01	5591572