Period	People
1962-01-01	-805508
1967-01-01	-316486
1972-01-01	796880
1977-01-01	2413853
1982-01-01	3394613
1987-01-01	2395278
1992-01-01	2403057
1997-01-01	3220190
2002-01-01	4360629
2007-01-01	8430964
2012-01-01	4722878