| Year | Country | % Correct |
|---|---|---|
| 1991 | Iraq | 96%
|
| 2003-11 | Iraq | 96%
|
| 2014-16 | Iraq | 96%
|
| 1987-88 | Iran | 91%
|
| 1998 | Iran | 91%
|
| 1961-73 | Vietnam | 89%
|
| 1998 | Afghanistan | 86%
|
| 2001 | Afghanistan | 86%
|
| 2014-16 | Syria | 86%
|
| 1945-46 | China | 75%
|
| 2004 | Pakistan | 72%
|
| 1950-53 | Korea | 70%
|
| 1969-70 | Cambodia | 69%
|
| 1959-60 | Cuba | 69%
|
| 1964-73 | Laos | 68%
|
| 1986 | Libya | 63%
|
| 1989 | Libya | 63%
|
| 2011 | Libya | 63%
|
| 2004 | Yemen | 60%
|
| 1991 | Kuwait | 55%
|
| 1999 | Yugoslavia | 55%
|
| 1982-84 | Lebanon | 54%
|
| 1992-94 | Somalia | 51%
|
| 2011 | Somalia | 51%
|
| 1989-90 | Panama | 42%
|
| 1998 | Sudan | 41%
|
| 1981-90 | Nicaragua | 38%
|
| 1958 | Indonesia | 36%
|
| 1983-84 | Grenada | 32%
|
| 1995 | Bosnia | 30%
|
| 1954 | Guatemala | 30%
|
| 1960 | Guatemala | 30%
|
| 1964 | Guatemala | 30%
|
| 1967-69 | Guatemala | 30%
|
| 1981-92 | El Salvador | 26%
|
| 1964 | Congo | 25%
|
| 1965 | Peru | 15%
|
| 1965-66 | Dominican Republic | 12%
|