| Year | Country | % Correct |
|---|---|---|
| 2015 | United States | 99%
|
| 2005 | Canada | 96%
|
| 2005 | Spain | 95%
|
| 2020 | United Kingdom | 95%
|
| 2009 | Sweden | 94%
|
| 2013 | France | 93%
|
| 2009 | Norway | 93%
|
| 2017 | Finland | 92%
|
| 2017 | Germany | 92%
|
| 2001 | Netherlands | 92%
|
| 2017 | Australia | 91%
|
| 2013 | Brazil | 91%
|
| 2022 | Mexico | 91%
|
| 2010 | Portugal | 91%
|
| 2003 | Belgium | 89%
|
| 2012 | Denmark | 88%
|
| 2013 | New Zealand | 88%
|
| 2010 | Argentina | 87%
|
| 2022 | Switzerland | 86%
|
| 2015 | Ireland | 85%
|
| 2019 | Austria | 84%
|
| 2024 | Greece | 82%
|
| 2015 | Luxembourg | 82%
|
| 2022 | Chile | 81%
|
| 2016 | Colombia | 79%
|
| 2010 | Iceland | 79%
|
| 2006 | South Africa | 76%
|
| 2023 | Andorra | 71%
|
| 2025 | Liechtenstein | 71%
|
| 2013 | Uruguay | 71%
|
| 2024 | Estonia | 70%
|
| 2019 | Ecuador | 66%
|
| 2022 | Slovenia | 65%
|
| 2025 | Thailand | 63%
|
| 2022 | Cuba | 62%
|
| 2017 | Malta | 59%
|
| 2020 | Costa Rica | 55%
|
| 2019 | Taiwan | 55%
|
| 2023 | Nepal | 28%
|