Period	Persons
1967-01-01	3235125
1972-01-01	3547335
1977-01-01	3825426
1982-01-01	4359379
1987-01-01	5106707
1992-01-01	5882679
1997-01-01	6369573
2002-01-01	7037727
2007-01-01	8328312
2012-01-01	9849569