| Letter | Code | % Correct |
|---|---|---|
| A | Alfa | 98%
|
| D | Delta | 95%
|
| E | Echo | 90%
|
| C | Charlie | 88%
|
| B | Bravo | 85%
|
| F | Foxtrot | 83%
|
| I | India | 70%
|
| J | Juliet | 70%
|
| G | Golf | 68%
|
| H | Hotel | 68%
|
| K | Kilo | 63%
|
| L | Lima | 63%
|
| M | Mike | 60%
|
| N | November | 60%
|
| O | Oscar | 60%
|
| P | Papa | 58%
|
| R | Romeo | 58%
|
| Q | Quebec | 53%
|
| T | Tango | 48%
|
| U | Uniform | 48%
|
| S | Sierra | 45%
|
| X | Xray | 43%
|
| W | Whiskey | 40%
|
| V | Victor | 38%
|
| Z | Zulu | 35%
|
| Y | Yankee | 33%
|