World Population over Time
Historical Estimates of World Population
(Population in millions. When lower and upper estimates are the same they are shown under "Lower.")
| Year | Summary | Biraben | Durand | Haub | McEvedy and Jones |
Thomlinson | UN, 1973 | UN, 1999 | USCB | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lower | Upper | Lower | |||||||||||
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