| Year | Country | % Correct |
|---|---|---|
| 2015 | United States of America | 96%
|
| 2009 | Norway | 92%
|
| 2009 | Sweden | 92%
|
| 2001 | The Netherlands | 92%
|
| 2005 | Canada | 88%
|
| 2013 | France | 88%
|
| 2015 | Ireland | 88%
|
| 2010 | Portugal | 88%
|
| 2005 | Spain | 88%
|
| 2003 | Belgium | 84%
|
| 2013 | New Zealand | 80%
|
| 2012 | Denmark | 76%
|
| 2010 | Iceland | 72%
|
| 2015 | Luxembourg | 68%
|
| 2006 | South Africa | 60%
|
| 2013 | Brazil | 44%
|
| 2010 | Argentina | 36%
|
| 2016 | Colombia | 32%
|
| 2013 | Uruguay | 24%
|