Period	Persons
1967-01-01	4449858
1972-01-01	4880740
1977-01-01	5344538
1982-01-01	5958870
1987-01-01	6677487
1992-01-01	7399862
1997-01-01	8136372
2002-01-01	8859635
2007-01-01	9513714
2012-01-01	10173775