Period	Persons
1967-01-01	198751
1972-01-01	209137
1977-01-01	221799
1982-01-01	233860
1987-01-01	245859
1992-01-01	261057
1997-01-01	271128
2002-01-01	287523
2007-01-01	311566
2012-01-01	320716