Period	Persons
1967-01-01	112699
1972-01-01	127148
1977-01-01	136991
1982-01-01	151498
1987-01-01	174250
1992-01-01	194894
1997-01-01	218484
2002-01-01	251766
2007-01-01	286196
2012-01-01	324060