| Letter | Rank | Country | % Correct |
|---|---|---|---|
| A | 162 | Afghanistan | 94%
|
| Y | 159 | Yemen | 94%
|
| O | 70 | Oman | 92%
|
| Z | 127 | Zimbabwe | 92%
|
| Q | 30 | Qatar | 91%
|
| V | 143 | Venezuela | 91%
|
| I | 161 | Iraq | 85%
|
| J | 95 | Jordan | 81%
|
| S | 163 | Syria | 81%
|
| H | 106 | Honduras | 79%
|
| R | 151 | Russia | 77%
|
| T | 146 | Turkey | 77%
|
| F | 51 | France | 74%
|
| K | 125 | Kenya | 74%
|
| P | 152 | Pakistan | 74%
|
| E | 139 | Egypt | 72%
|
| L | 157 | Libya | 72%
|
| N | 150 | North Korea | 72%
|
| U | 154 | Ukraine | 68%
|
| D | 153 | Democratic Republic of the Congo | 64%
|
| G | 122 | Guinea-Bissau | 55%
|
| B | 141 | Burundi | 53%
|
| C | 155 | Central African Republic | 47%
|
| M | 142 | Mexico | 42%
|