Period	Persons
1967-01-01	1665301
1972-01-01	1891998
1977-01-01	2189070
1982-01-01	2573931
1987-01-01	3028719
1992-01-01	3331918
1997-01-01	3560353
2002-01-01	4281576
2007-01-01	5209846
2012-01-01	6130922