| Country | Age | % Correct |
|---|---|---|
| Nigeria | 52.75 | 71%
|
| Sierra Leone | 50.88 | 71%
|
| Chad | 51.56 | 65%
|
| Central African Republic | 50.66 | 59%
|
| Lesotho | 49.70 | 59%
|
| Swaziland | 48.93 | 53%
|
| Angola | 52.27 | 47%
|
| Guinea-Bissau | 55.16 | 47%
|
| Côte d'Ivoire | 51.56 | 41%
|
| Mozambique | 55.03 | 35%
|