Period	Persons
1967-01-01	134194
1972-01-01	147323
1977-01-01	153244
1982-01-01	157401
1987-01-01	161014
1992-01-01	165568
1997-01-01	172191
2002-01-01	176592
2007-01-01	182240
2012-01-01	188889