| Year(s) | Countries | % Correct |
|---|---|---|
| 1953, 1962 | Brazil | 84%
|
| 1953 | West Germany | 82%
|
| 1948, 1958, 1963, 1968, 1972, 1976, 1983 | Italy | 80%
|
| 1984, 1989 | Panama | 80%
|
| 1946 | Argentina | 79%
|
| 1964, 1970, 1988 | Chile | 77%
|
| 1958 | Guatemala | 77%
|
| 1987 | United Kingdom | 77%
|
| 1980 | Iran | 75%
|
| 1952, 1953, 1958, 1960, 1963 | Japan | 75%
|
| 1966, 1986 | Costa Rica | 73%
|
| 1982, 1984 | El Salvador | 73%
|
| 1990 | Nicaragua | 73%
|
| 1962 | Peru | 73%
|
| 1961, 1971 | South Vietnam | 73%
|
| 1966 | Dominican Republic | 71%
|
| 1958, 1961 | Greece | 70%
|
| 1996 | Russia | 66%
|
| 1955, 1958, 1960, 1967 | Laos | 64%
|
| 1964, 1966 | Bolivia | 61%
|
| 1993 | Cambodia | 61%
|
| 1969 | Thailand | 59%
|
| 1949, 1992, 1996, 1999 | Israel | 57%
|
| 1971 | Uruguay | 57%
|
| 1992, 2000 | Yugoslavia/Serbia | 57%
|
| 1953 | Indonesia | 54%
|
| 1953, 1957, 1961 | Philippines | 52%
|
| 1994 | Ukraine | 50%
|
| 1984 | Grenada | 48%
|
| 1990, 1991 | Bulgaria | 46%
|
| 1968 | Guyana | 46%
|
| 1990, 1992 | Romania | 46%
|
| 1980 | Jamaica | 45%
|
| 1959 | Malaysia | 41%
|
| 1990 | Czechoslovakia | 36%
|
| 1957 | Lebanon | 34%
|
| 1991, 1992 | Albania | 30%
|
| 1959 | Nepal | 27%
|
| 1964 | Somalia | 23%
|
| 1956 | Iceland | 21%
|
| 1998 | Slovakia | 20%
|
| 1956, 1960 x2, 1965 | Sri Lanka | 20%
|
| 1971 | Malta | 7%
|
| 1959 | San Marino | 5%
|
| 1982 | Mauritius | 2%
|