| Letter | Code | % Correct |
|---|---|---|
| Z | Zulu | 51%
|
| A | Alfa | 50%
|
| C | Charlie | 50%
|
| L | Lima | 50%
|
| X | Xray | 50%
|
| I | India | 49%
|
| F | Foxtrot | 48%
|
| H | Hotel | 48%
|
| Y | Yankee | 48%
|
| D | Delta | 47%
|
| T | Tango | 47%
|
| U | Uniform | 47%
|
| B | Bravo | 46%
|
| E | Echo | 46%
|
| K | Kilo | 46%
|
| O | Oscar | 46%
|
| Q | Quebec | 46%
|
| M | Mike | 45%
|
| P | Papa | 45%
|
| S | Sierra | 45%
|
| R | Romeo | 43%
|
| W | Whiskey | 43%
|
| N | November | 42%
|
| V | Victor | 41%
|
| G | Golf | 39%
|
| J | Juliett | 34%
|