Period	Persons
1967-01-01	2659452
1972-01-01	3112041
1977-01-01	3608761
1982-01-01	4146923
1987-01-01	4849253
1992-01-01	5523207
1997-01-01	5937177
2002-01-01	6404118
2007-01-01	7111025
2012-01-01	8008990