| Estimate Year | Population | Country | % Correct |
|---|---|---|---|
| 2048 | 27.1 m | Niger | 78%
|
| 2078 | 39.8 m | Canada | 73%
|
| 2031 | 46.8 m | Algeria | 71%
|
| 2055 | 24.5 m | Mali | 71%
|
| 2065 | 20.3 m | Chad | 69%
|
| 2029 | 46.1 m | Iraq | 69%
|
| 2068 | 19.0 m | Somalia | 67%
|
| 2034 | 37.9 m | Angola | 63%
|
| 2050 | 34.4 m | Ghana | 63%
|
| 2039 | 34.7 m | Mozambique | 63%
|
| 2031 | 42.7 m | Afghanistan | 61%
|
| 2056 | 37.2 m | Saudi Arabia | 61%
|
| 2049 | 29.1 m | Cameroon | 59%
|
| 2033 | 40.6 m | Yemen | 53%
|
| 2070 | 21.3 m | Zambia | 53%
|
| 2047 | 32.0 m | Madagascar | 51%
|
| 2045 | 31.9 m | Ivory Coast | 49%
|
| 2074 | 21.7 m | Malawi | 47%
|
| 2047 | 36.4 m | Uzbekistan | 43%
|