Period	Persons
1967-01-01	52468594
1972-01-01	58829321
1977-01-01	67425439
1982-01-01	77729805
1987-01-01	88412920
1992-01-01	100592242
1997-01-01	113979481
2002-01-01	129224641
2007-01-01	147187353
2012-01-01	168833776