| Years | Nation | % Correct |
|---|---|---|
| 1953 | Iran | 95%
|
| 1959-2016 (unsuccessful) | Cuba | 92%
|
| 1963, 2003 | Iraq | 92%
|
| 1956-7 (unsuccessful), 2012 (unsuccessful) | Syria | 89%
|
| 1945-73 (unsuccessful) | North Vietnam | 87%
|
| 1980s, 2001 | Afghanistan | 82%
|
| 1954 | Guatemala | 82%
|
| 2002 | Venezuela | 82%
|
| 1949-early 1960s (unsuccessful) | China | 79%
|
| 1962-64 | Brazil | 76%
|
| 1981-09 | Nicaragua | 76%
|
| 1989 | Panama | 76%
|
| 1964-73 | Chile | 74%
|
| 2009 | Honduras | 74%
|
| 1958, 1959, 1960 | Laos | 74%
|
| 1955-70 | Cambodia | 71%
|
| 1983 | Grenada | 71%
|
| 2004 | Haiti | 71%
|
| 1963 | Dominican Republic | 68%
|
| 1967 | Greece | 68%
|
| 1980s (unsuccessful), 2011 | Libya | 68%
|
| 1964, 1971 | Bolivia | 66%
|
| 1960, 1975 (unsuccessful) | Congo/Zaire | 61%
|
| 1993 (unsuccessful), 2007-present (unsuccessful) | Somalia | 61%
|
| Mid 1950s (unsuccessful), 1970-71 (unsuccessful) | Costa Rica | 55%
|
| 1982-84 (unsuccessful) | South Yemen | 55%
|
| 1999-2000 | Yugoslavia | 55%
|
| 1957 (unsuccessful), 1965 | Indonesia | 53%
|
| 2014 | Ukraine | 53%
|
| 1975 (unsuccessful), 1980s (unsuccessful) | Angola | 45%
|
| 1953-64 | British Guiana | 45%
|
| 1960-63, 2000 | Ecuador | 45%
|
| 1949-53 (unsuccessful), 1991 | Albania | 42%
|
| 1950s (unsuccessful) | East Germany | 42%
|
| 1976-80 | Jamaica | 42%
|
| 1982-84 (unsuccessful) | Suriname | 39%
|
| 1965 (unsuccessful) | France | 34%
|
| 1973-75 | Australia | 32%
|
| 1991 | Bulgaria | 29%
|
| 1974-76 | Portugal | 29%
|
| 1981-82 | Chad | 26%
|
| 1966 | Ghana | 26%
|
| 1987 | Fiji | 18%
|
| 1979-81 (unsuccessful) | Seychelles | 16%
|