| Count | Prefix |
|---|---|
| 179 | mw- |
| 14 | mw. |
| 3 | mw0 |
| 7 | mw1 |
| 26 | mw2 |
| 8 | mw3 |
| 8 | mw4 |
| 7 | mw5 |
| 6 | mw6 |
| 3 | mw7 |
| 4 | mw8 |
| 4 | mw9 |
| 519 | mwa |
| 209 | mwb |
| 336 | mwc |
| 159 | mwd |
| 328 | mwe |
| 130 | mwf |
| 113 | mwg |
| 161 | mwh |
| 304 | mwi |
| 34 | mwj |
| 51 | mwk |
| 120 | mwl |
| 264 | mwm |
| 61 | mwn |
| 180 | mwo |
| 200 | mwp |
| 9 | mwq |
| 164 | mwr |
| 322 | mws |
| 177 | mwt |
| 38 | mwu |
| 58 | mwv |
| 83 | mww |
| 10 | mwx |
| 21 | mwy |
| 20 | mwz |