| Year | Country | % Correct |
|---|---|---|
| 2011 | South Sudan | 99%
|
| 2008 | Kosovo | 88%
|
| 2006 | Montenegro | 87%
|
| 2006 | Serbia | 85%
|
| 2002 | East Timor | 70%
|
| 1993 | Czech Republic | 69%
|
| 1992 | Bosnia and Herzegovina | 67%
|
| 1993 | Slovakia | 67%
|
| 1994 | Palau | 54%
|
| 1993 | Eritrea | 51%
|