| Answer | % Correct | |
|---|---|---|
| 1960– | Saudi Arabia | 88%
|
| 1960– | Kuwait | 86%
|
| 1960– | Iran | 85%
|
| 1960– | Iraq | 85%
|
| 1961–2019 | Qatar | 83%
|
| 1960– | Venezuela | 81%
|
| 1967–2026 | United Arab Emirates | 80%
|
| 1962– | Libya | 77%
|
| 1969– | Algeria | 76%
|
| 2007–2023 | Angola | 69%
|
| 1971– | Nigeria | 69%
|
| 2017– | Equatorial Guinea | 57%
|
| 1962–2008, 2016 | Indonesia | 54%
|
| 1975–1995, 2016– | Gabon | 50%
|
| 2018– | Rep. of the Congo | 48%
|
| 1973–1992, 2007–2020 | Ecuador | 45%
|