| Dates | Answer | % Correct |
|---|---|---|
| March 23-24, 2016 | Argentina | 100%
|
| March 19-21, 2011 | Brazil | 100%
|
| February 19, 2009 | June 25-27, 2010 | June 29, 2016 | Canada | 100%
|
| November 10-12, 2014 | November 15-18, 2009 | September 3-5, 2016 | China | 100%
|
| April 3-4, 2009 | June 5-6, 2014 | June 5-7, 2009 | +3 others | France | 100%
|
| July 8-10, 2009 | March 26-28, 2014 | Italy | 100%
|
| April 16-17, 2009 | August 9-10, 2009 | February 19, 2014 | +2 others | Mexico | 100%
|
| July 9-10, 2016 | Spain | 100%
|
| April 5-7, 2009 | November 15-16, 2015 | Turkey | 100%
|
| April 21-24, 2016 | June 17-18, 2013 | Mar. 31-Apr. 3, 2009 | +3 others | United Kingdom | 100%
|
| November 15-16, 2014 | November 16-17, 2011 | Australia | 96%
|
| April 20, 2016 | April 24-25, 2016 | April 3-4, 2009 | +14 others | Germany | 96%
|
| January 25-27, 2015 | November 6-9, 2010 | India | 96%
|
| May 23, 2011 | Ireland | 96%
|
| April 23-25, 2014 | May 22, 2016 | May 25-27, 2016 | +5 others | Japan | 96%
|
| December 9-11, 2009 | Norway | 96%
|
| November 18, 2016 | November 19-20, 2010 | Portugal | 96%
|
| July 6-8, 2009 | September 5-6, 2013 | Russia | 96%
|
| April 20-21, 2016 | January 27, 2015 | June 3-4, 2009 | March 28-29, 2014 | Saudi Arabia | 96%
|
| April 25-26, 2014 | March 25-27, 2012 | November 10-12, 2010 | November 18-19, 2009 | South Korea | 96%
|
| September 4-5, 2013 | Sweden | 96%
|
| June 4-5, 2014 | March 25-26, 2014 | Belgium | 92%
|
| April 13-15, 2012 | Colombia | 92%
|
| December 17-19, 2009 | October 2, 2009 | Denmark | 92%
|
| June 4, 2009 | Egypt | 92%
|
| November 15-16, 2016 | Greece | 92%
|
| March 24-25, 2014 | Netherlands | 92%
|
| July 8-9, 2016 | June 3-4, 2014 | May 27-28, 2011 | Poland | 92%
|
| December 10, 2013 | June 28- July 1, 2013 | South Africa | 92%
|
| April 7-8, 2009 | Iraq | 88%
|
| March 20-22, 2013 | September 30, 2016 | Israel | 88%
|
| March 20-22, 2016 | Cuba | 83%
|
| November 17-19, 2011 | November 9-10, 2010 | Indonesia | 83%
|
| April 28-29, 2014 | November 17-20, 2015 | Philippines | 83%
|
| November 18-19, 2012 | Thailand | 83%
|
| April 26-28, 2014 | November 20-22, 2015 | Malaysia | 79%
|
| November 14-15, 2009 | Singapore | 79%
|
| May 22-25, 2016 | Vietnam | 79%
|
| December 3, 2010 | March 28-29, 2010 | May 1-2, 2012 | May 25, 2014 | Afghanistan | 75%
|
| March 21-22, 2011 | Chile | 75%
|
| April 4-5, 2009 | April 8, 2010 | Czech Republic | 75%
|
| April 8-9, 2015 | Jamaica | 75%
|
| April 9-11, 2015 | Panama | 75%
|
| November 18-20, 2016 | Peru | 75%
|
| July 10, 2009 | March 27, 2014 | Vatican City | 75%
|
| November 19-20, 2012 | Cambodia | 71%
|
| March 22-23, 2013 | Jordan | 71%
|
| July 24-26, 2015 | Kenya | 67%
|
| July 1-2, 2013 | Tanzania | 67%
|
| May 3-4, 2013 | Costa Rica | 58%
|
| July 26-28, 2015 | Ethiopia | 58%
|
| September 5-8, 2016 | Laos | 58%
|
| March 22-23, 2011 | El Salvador | 54%
|
| July 10-11, 2009 | Ghana | 54%
|
| April 17-18, 2009 | Trinidad and Tobago | 54%
|
| November 12-14, 2014 | November 19, 2012 | Myanmar | 50%
|
| December 11, 2013 | December 9, 2013 | July 2, 2013 | June 26-28, 2013 | Senegal | 50%
|
| September 3-4, 2014 | Estonia | 42%
|