| Vowels | Country | % Correct |
|---|---|---|
| AUIA | Austria | 100%
|
| AE | France | 96%
|
| OEIA | Slovenia | 91%
|
| EIU | Belgium | 87%
|
| OAO | Monaco | 87%
|
| EAU | Belarus | 78%
|
| UAIA | Bulgaria | 78%
|
| IEEEI | Liechtenstein | 78%
|
| OOA | Moldova | 70%
|
| UIEIO | United Kingdom | 70%
|
| UIA | Russia | 65%
|
| EEUI | Czech Republic | 48%
|