| Letter | Population | City | % Correct |
|---|---|---|---|
| L | 14.8 m | London | 96%
|
| P | 11.4 m | Paris | 94%
|
| M | 17.4 m | Moscow | 90%
|
| R | 3.50 m | Rome | 82%
|
| B | 4.88 m | Barcelona | 80%
|
| I | 16.2 m | Istanbul | 74%
|
| W | 2.35 m | Warsaw | 74%
|
| A | 3.50 m | Athens | 73%
|
| O | 1.21 m | Oslo | 72%
|
| K | 3.48 m | Kyiv | 66%
|
| S | 5.65 m | Saint Petersburg | 65%
|
| V | 2.23 m | Vienna | 65%
|
| C | 1.69 m | Copenhagen | 62%
|
| F | 3.28 m | Frankfurt | 59%
|
| N | 4.15 m | Naples | 57%
|
| Z | 1.45 m | Zürich | 55%
|
| H | 2.88 m | Hamburg | 54%
|
| E | 0.901 m | Edinburgh | 40%
|
| T | 1.61 m | Turin | 40%
|
| G | 1.69 m | Glasgow | 36%
|
| Y | 1.67 m | Yekaterinburg | 20%
|
| D | 1.44 m | Donetsk | 12%
|
| U | 1.13 m | Ufa | 11%
|
| Q | 0.064 m | Quimper | 8%
|
| J | 0.213 m | Jerez de la Frontera | 7%
|
| X | 0.067 m | Xanthi | 5%
|