| Year | Country | % Correct |
|---|---|---|
| 1961 | Russia | 97%
|
| 2003 | China | 95%
|
| 1961 | United States | 95%
|
| 1984 | India | 94%
|
| 1985 | Mexico | 94%
|
| 1991 | United Kingdom | 94%
|
| 1984 | Canada | 92%
|
| 1982 | France | 90%
|
| 1990 | Japan | 90%
|
| 2008 | South Korea | 87%
|
| 2021 | Australia | 86%
|
| 2006 | Brazil | 86%
|
| 1992 | Italy | 86%
|
| 1978 | Poland | 86%
|
| 1998 | Spain | 86%
|
| 2006 | Sweden | 84%
|
| 2006 | Iran | 81%
|
| 2002 | South Africa | 81%
|
| 2003 | Israel | 79%
|
| 1991 | Austria | 78%
|
| 2015 | Denmark | 76%
|
| 2022 | Egypt | 76%
|
| 2022 | Portugal | 76%
|
| 1985 | Saudi Arabia | 76%
|
| 1985 | Netherlands | 75%
|
| 2024 | Turkey | 75%
|
| 1992 | Belgium | 73%
|
| 2023 | Pakistan | 73%
|
| 1981 | Romania | 73%
|
| 1979 | Bulgaria | 70%
|
| 1980 | Hungary | 70%
|
| 1997 | Ukraine | 70%
|
| 2019 | United Arab Emirates | 70%
|
| 1980 | Vietnam | 68%
|
| 1980 | Cuba | 67%
|
| 1992 | Switzerland | 67%
|
| 2015 | Kazakhstan | 65%
|
| 1999 | Slovakia | 59%
|
| 1981 | Mongolia | 52%
|
| 1987 | Syria | 46%
|
| 1988 | Afghanistan | 43%
|
| 2007 | Malaysia | 43%
|
| 2023 | Antigua & Barbuda | 19%
|