Period	Persons
1967-01-01	660117
1972-01-01	776379
1977-01-01	977788
1982-01-01	1289842
1987-01-01	1622123
1992-01-01	1965586
1997-01-01	2177723
2002-01-01	2308409
2007-01-01	2569739
2012-01-01	3314001