Period	Persons
1967-01-01	2298083
1972-01-01	2608887
1977-01-01	2950552
1982-01-01	3390101
1987-01-01	3919708
1992-01-01	4470934
1997-01-01	5021271
2002-01-01	5571371
2007-01-01	6125285
2012-01-01	6687361