| Letter | % of population | Country | % Correct |
|---|---|---|---|
| Q | 99% | Qatar | 100%
|
| O | 87% | Oman | 94%
|
| Y | 39% | Yemen | 91%
|
| J | 92% | Japan / Jordan | 88%
|
| M | 100% | Monaco | 88%
|
| Z | 45% | Zambia | 88%
|
| S | 100% | Singapore | 85%
|
| K | 100% | Kuwait | 79%
|
| V | 88% | Venezuela | 76%
|
| H | 72% | Hungary | 73%
|
| R | 75% | Russia | 73%
|
| D | 88% | Denmark | 70%
|
| L | 92% | Luxembourg | 67%
|
| F | 86% | Finland | 64%
|
| N | 100% | Nauru | 64%
|
| U | 96% | Uruguay | 64%
|
| T | 77% | Turkey | 52%
|
| I | 94% | Iceland | 48%
|
| B | 98% | Belgium | 45%
|
| P | 81% | Palau | 45%
|
| A | 92% | Argentina | 39%
|
| E | 74% | El Salvador / Equatorial Guinea | 39%
|
| C | 88% | Chile | 36%
|
| G | 90% | Gabon | 21%
|