| Year | Answer | % Correct |
|---|---|---|
| 2005 | Canada | 100%
|
| 2015 | United States | 100%
|
| 2017 | Australia | 97%
|
| 2013 | New Zealand | 97%
|
| 2009 | Norway | 97%
|
| 2009 | Sweden | 97%
|
| 2014 | United Kingdom | 97%
|
| 2013 | Brazil | 93%
|
| 2017 | Finland | 93%
|
| 2013 | France | 93%
|
| 2017 | Germany | 93%
|
| 2015 | Ireland | 93%
|
| 2010 | Argentina | 90%
|
| 2022 | Chile | 90%
|
| 2010 | Iceland | 90%
|
| 2001 | Netherlands | 90%
|
| 2010 | Portugal | 90%
|
| 2005 | Spain | 90%
|
| 2012 | Denmark | 87%
|
| 2003 | Belgium | 83%
|
| 2022 | Switzerland | 83%
|
| 2019 | Austria | 80%
|
| 2016 | Colombia | 80%
|
| 2006 | South Africa | 73%
|
| 2013 | Uruguay | 73%
|
| 2019 | Ecuador | 70%
|
| 2017 | Malta | 67%
|
| 2020 | Costa Rica | 63%
|
| 2022 | Cuba | 63%
|
| 2015 | Luxembourg | 63%
|
| 2022 | Slovenia | 63%
|
| 2019 | Taiwan | 63%
|
| 2023 | Andorra | 57%
|