Period	Persons
1967-01-01	487911
1972-01-01	542811
1977-01-01	598256
1982-01-01	668219
1987-01-01	721594
1992-01-01	744340
1997-01-01	793098
2002-01-01	816237
2007-01-01	835392
2012-01-01	874742