Period	Persons
1967-01-01	3927961
1972-01-01	4429194
1977-01-01	5001971
1982-01-01	5628347
1987-01-01	6331219
1992-01-01	7123294
1997-01-01	7978521
2002-01-01	8843350
2007-01-01	9676456
2012-01-01	10496285