| Year | Country | % Correct |
|---|---|---|
| 2015 | Saudi Arabia | 90%
|
| 1980 | Iraq | 89%
|
| 2003 | Oman | 89%
|
| 1999 | Qatar | 88%
|
| 2006 | United Arab Emirates | 86%
|
| 2005 | Kuwait | 78%
|
| 1999 | Kuwait (restored, revoked) | 78%
|
| 1985 | Kuwait (revoked) | 78%
|
| 1974 | Jordan | 72%
|
| 2001 | Afghanistan | 70%
|
| 1996 | Afghanistan (revoked by Taliban) | 70%
|
| 1978 | Nigeria (North) | 58%
|
| 1990 | Switzerland (Appenzell Innerhoden Canton) | 47%
|
| 1975 | Angola | 36%
|
| 1986 | Central African Republic | 30%
|
| 1993 | Kazakhstan | 29%
|
| 1975 | Mozambique | 29%
|
| 1989 | Namibia | 28%
|
| 1978 | Palau | 26%
|
| 1976 | East Timor | 24%
|
| 1984 | Liechtenstein | 24%
|
| 1977 | Guinea-Bissau | 21%
|
| 1990 | Western Samoa | 21%
|
| 1975 | Cape Verde | 19%
|
| 1978 | Marshall Islands | 19%
|
| 1975 | Sao Tome and Principe | 19%
|
| 1974 | Solomon Islands | 19%
|
| 1975 | Vanuatu | 19%
|
| 1976 | Portugal (all restrictions lifted) | 14%
|
| 1993 | Moldova | 13%
|
| 1978 | Micronesia | 11%
|