Period	Persons
1967-01-01	2301220
1972-01-01	2395674
1977-01-01	2485073
1982-01-01	2531080
1987-01-01	2626583
1992-01-01	2614338
1997-01-01	2432851
2002-01-01	2310173
2007-01-01	2200325
2012-01-01	2034319