| Vowel | Country | % Correct |
|---|---|---|
| a | Japan | 84%
|
| a | Canada | 82%
|
| o | Togo | 82%
|
| a | Chad | 80%
|
| i | Fiji | 80%
|
| e | Sweden | 78%
|
| o | Comoros | 69%
|
| o | Kosovo | 67%
|
| o | Morocco | 67%
|
| a | Panama | 67%
|
| e | Egypt | 65%
|
| a | Ghana | 65%
|
| e | Greece | 65%
|
| a | Qatar | 63%
|
| e | Yemen | 61%
|
| a | Madagascar | 59%
|
| a | Bahamas | 57%
|
| a | Rwanda | 57%
|
| a | Kazakhstan | 53%
|
| a | Malta | 53%
|
| u | Cyprus | 45%
|
| o | Congo, Democratic Republic of the | 41%
|
| o | Congo, Republic of the | 41%
|
| e | Seychelles | 41%
|
| a | Myanmar | 37%
|
| a | Kyrgyzstan | 33%
|