| Years | Country | % Correct |
|---|---|---|
| 62.2 | D. R. Congo | 92%
|
| 56.1 | Somalia | 88%
|
| 59.7 | South Sudan | 83%
|
| 56.0 | Central African Republic | 79%
|
| 59.6 | Chad | 79%
|
| 60.5 | Niger | 79%
|
| 62.5 | Rep. of the Congo | 79%
|
| 62.8 | Mali | 75%
|
| 61.8 | Nigeria | 75%
|
| 54.1 | Afghanistan | 71%
|
| 62.5 | Angola | 71%
|
| 57.7 | Mozambique | 71%
|
| 59.0 | Sierra Leone | 71%
|
| 60.2 | Eswatini | 67%
|
| 59.9 | Lesotho | 67%
|
| 63.8 | Zimbabwe | 67%
|
| 62.6 | Benin | 63%
|
| 62.7 | Ivory Coast | 63%
|
| 63.7 | Cameroon | 58%
|
| 63.8 | Equatorial Guinea | 46%
|