| Date of joining | Answer | % Correct |
|---|---|---|
| 14 July 2011 | South Sudan | 97%
|
| 22 May 1992 | Croatia | 81%
|
| 22 May 1992 | Bosnia and Herzogovina | 78%
|
| 8 Apr 1993 | Macedonia | 78%
|
| 28 June 2006 | Montenegro | 78%
|
| 1 Nov 2000 | Serbia | 75%
|
| 22 May 1992 | Slovenia | 75%
|
| 19 Jan 1993 | Slovakia | 72%
|
| 19 Jan 1993 | Czech Republic | 67%
|
| 15 Dec 1994 | Palau | 53%
|
| 14 Sep 1999 | Nauru | 47%
|
| 5 Sep 2000 | Tuvalu | 47%
|
| 14 Sep 1999 | Kiribati | 44%
|
| 10 Sep 2002 | Switzerland | 44%
|
| 28 May 1993 | Eritrea | 42%
|
| 31 Jul 1992 | Georgia | 42%
|
| 14 Sep 1999 | Tonga | 39%
|
| 28 July 1993 | Andorra | 33%
|
| 28 May 1993 | Monaco | 31%
|
| 27 Sep 2002 | Timor-Leste | 28%
|