Period	Persons
1967-01-01	9852899
1972-01-01	9867632
1977-01-01	10186755
1982-01-01	10314826
1987-01-01	10347318
1992-01-01	10319123
1997-01-01	10304131
2002-01-01	10196916
2007-01-01	10298828
2012-01-01	10510785