| Letter | Length of leave (weeks) | Country | % Correct |
|---|---|---|---|
| U | 39 | United Kingdom | 96%
|
| F | 17.5 | Finland | 91%
|
| I | 26 | Iceland, Ireland | 91%
|
| Q | 5.7 | Qatar | 91%
|
| Y | 8.6 | Yemen | 91%
|
| Z | 12.9 | Zimbabwe | 91%
|
| J | 14 | Japan | 89%
|
| E | 14.3 | Estonia | 87%
|
| P | 20 | Poland | 87%
|
| R | 20 | Russia | 87%
|
| D | 18 | Denmark | 85%
|
| V | 18 | Venezuela | 85%
|
| A | 16 | Austria | 80%
|
| L | 20 | Luxembourg | 78%
|
| H | 24 | Hungary | 76%
|
| T | 16 | Turkiye | 72%
|
| C | 30 | Croatia | 69%
|
| G | 43 | Greece | 65%
|
| K | 10 | Kuwait | 59%
|
| N | 26 | New Zealand | 59%
|
| S | 34 | Slovakia | 52%
|
| B | 58.6 | Bulgaria | 44%
|
| M | 18 | Malta | 41%
|