| Years | Country | % Correct |
|---|---|---|
| 1960– | Iran | 99%
|
| 1960– | Iraq | 99%
|
| 1960– | Saudi Arabia | 99%
|
| 1960– | Venezuela | 98%
|
| 1960– | Kuwait | 94%
|
| 1969– | Algeria | 92%
|
| 1971– | Nigeria | 92%
|
| 1962– | Libya | 91%
|
| 2007– | Angola | 81%
|
| 2018– | Republic of the Congo | 81%
|
| 1975–1995, 2016– | Gabon | 71%
|
| 2017– | Equatorial Guinea | 65%
|