Period	Persons
1967-01-01	3722800
1972-01-01	4123600
1977-01-01	4583700
1982-01-01	5264500
1987-01-01	5590500
1992-01-01	5800500
1997-01-01	6489300
2002-01-01	6744100
2007-01-01	6916300
2012-01-01	7154600