| Date Joined | Answer | % Correct |
|---|---|---|
| 1970 | France | 97%
|
| 1970 | Belgium | 91%
|
| 1973 | Central African Republic | 91%
|
| 1970 | Chad | 91%
|
| 1977 | Democratic Republic of the Congo | 91%
|
| 1970 | Gabon | 91%
|
| 1981 | Guinea | 91%
|
| 1970 | Mali | 91%
|
| 1970 | Niger | 91%
|
| 1981 | Republic of the Congo | 91%
|
| 1970 | Senegal | 91%
|
| 1970 | Togo | 91%
|
| 1970 | Benin | 88%
|
| 1970 | Burkina Faso | 88%
|
| 1991 | Cameroon | 88%
|
| 1970 | Canada | 88%
|
| 1970 | Haiti | 88%
|
| 1970 | Luxembourg | 88%
|
| 1981 | Morocco | 88%
|
| 1970 | Vietnam | 88%
|
| 1993 | Cambodia | 85%
|
| 1970 | Ivory Coast | 85%
|
| 1991 | Laos | 85%
|
| 1980 | Mauritania | 85%
|
| 1970 | Tunisia | 85%
|
| 1970 | Burundi | 82%
|
| 1977 | Comoros | 82%
|
| 1970 | Mauritius | 82%
|
| 1970 | Rwanda | 82%
|
| 1976 | Seychelles | 82%
|
| 1996 | Switzerland | 82%
|
| 2004 | Andorra | 79%
|
| 1977 | Djibouti | 79%
|
| 2024 | Ghana | 79%
|
| 1989 | Equatorial Guinea | 76%
|
| 1973 | Lebanon | 76%
|
| 1996 | Cape Verde | 74%
|
| 1979 | Guinea-Bissau | 74%
|
| 1970-1977, 1989 | Madagascar | 74%
|
| 1970 | Monaco | 74%
|
| 1999 | São Tomé and Príncipe | 71%
|
| 1979 | Vanuatu | 68%
|
| 1979 | Dominica | 56%
|
| 1981 | Saint Lucia | 50%
|
| 1983 | Egypt | 47%
|
| 1993 | Bulgaria | 35%
|
| 1999 | Albania | 32%
|
| 2004 | Greece | 32%
|
| 1996 | Moldova | 32%
|
| 2001 | North Macedonia | 32%
|
| 1993 | Romania | 32%
|
| 2024 | Cyprus | 29%
|
| 2012 | Armenia | 26%
|