| Date | Country | % Correct |
|---|---|---|
| 1 February 1958 | United States | 100%
|
| 24 April 1970 | China | 97%
|
| 26 November 1965 | France | 94%
|
| 11 February 1970 | Japan | 93%
|
| 4 October 1957 | Soviet Union | 93%
|
| 28 October 1971 | United Kingdom | 93%
|
| 18 July 1980 | India | 90%
|
| 12 December 2012 | North Korea | 64%
|
| 2 February 2009 | Iran | 60%
|
| 19 September 1988 | Israel | 50%
|
| 7 February 2013 | Azerbaijan | 4%
|