| Letters | Country | % Correct |
|---|---|---|
| A, C, H, I, N | China | 97%
|
| E, S, T, U | United States | 97%
|
| D | India | 94%
|
| B, R, Z | Brazil | 93%
|
| J | Japan | 86%
|
| M, X | Mexico | 83%
|
| O | Indonesia | 77%
|
| K, P | Pakistan | 77%
|
| G | Nigeria | 69%
|
| V | Vietnam | 66%
|
| Q | Iraq | 60%
|
| Y | Egypt | 59%
|
| F | D.R. Congo | 56%
|
| W | Taiwan | 22%
|