Period	Persons
1967-01-01	3436227
1972-01-01	3816295
1977-01-01	4254762
1982-01-01	4715985
1987-01-01	5407077
1992-01-01	6338934
1997-01-01	7463347
2002-01-01	8959964
2007-01-01	10694366
2012-01-01	12448175