Period	Persons
1967-01-01	3784539
1972-01-01	3933004
1977-01-01	4043205
1982-01-01	4114787
1987-01-01	4186905
1992-01-01	4286401
1997-01-01	4405157
2002-01-01	4538159
2007-01-01	4709153
2012-01-01	5018573