| Year Joined | Answer | % Correct |
|---|---|---|
| 1996 | Angola | 97%
|
| 1996 | Brazil | 97%
|
| 1996 | Portugal | 97%
|
| 1996 | São Tomé and Príncipe | 90%
|
| 1996 | Mozambique | 83%
|
| 1996 | Cape Verde | 77%
|
| 2002 | East Timor | 73%
|
| 1996 | Guinea Bissau | 63%
|
| 2014 | Equatorial Guinea | 47%
|