| Letter | Percentage | Country | % Correct |
|---|---|---|---|
| U | 96.6% | United Kingdom | 93%
|
| Y | 22.9% | Yemen | 90%
|
| F | 92.2% | France | 89%
|
| J | 94.2% | Japan | 88%
|
| Z | 28.0% | Zimbabwe | 88%
|
| Q | 94.2% | Qatar | 87%
|
| D | 92.4% | Denmark | 86%
|
| G | 93.3% | Germany | 86%
|
| O | 82.2% | Oman | 85%
|
| C | 89.0% | Canada | 79%
|
| R | 89.5% | Russia | 79%
|
| V | 72.9% | Venezuela | 79%
|
| H | 76.8% | Hungary | 78%
|
| E | 86.8% | Estonia | 75%
|
| M | 102.4% | Monaco | 74%
|
| I | 88.9% | Iceland | 73%
|
| A | 96.3% | Andorra | 72%
|
| N | 94.8% | Norway | 72%
|
| P | 90.6% | Poland | 71%
|
| L | 95.3% | Liechtenstein | 68%
|
| K | 95.4% | Kuwait | 57%
|
| T | 91.9% | Taiwan | 53%
|
| B | 97.8% | Bahrain | 47%
|
| S | 96.9% | Saudi Arabia | 39%
|