| Incidence | Country | % Correct |
|---|---|---|
| 324 | Democratic Republic of the Congo | 88%
|
| 322 | Nigeria | 87%
|
| 379 | Republic of the Congo | 84%
|
| 370 | Angola | 82%
|
| 834 | South Africa | 81%
|
| 551 | Mozambique | 76%
|
| 391 | Zambia | 76%
|
| 489 | Namibia | 75%
|
| 391 | Central African Republic | 74%
|
| 306 | Tanzania | 74%
|
| 356 | Botswana | 71%
|
| 395 | Indonesia | 67%
|
| 465 | Gabon | 65%
|
| 788 | Lesotho | 65%
|
| 308 | Liberia | 64%
|
| 307 | Sierra Leone | 64%
|
| 373 | Guinea-Bissau | 57%
|
| 365 | Myanmar | 53%
|
| 432 | Papua New Guinea | 51%
|
| 322 | Philippines | 51%
|
| 380 | Cambodia | 49%
|
| 498 | East Timor | 40%
|
| 561 | North Korea | 34%
|
| 378 | Djibouti | 32%
|
| 565 | Swaziland | 31%
|
| 428 | Mongolia | 30%
|
| 551 | Kiribati | 19%
|
| 344 | Marshall Islands | 17%
|