| Count | Prefix |
|---|---|
| 4 | q-- |
| 3 | q-0 |
| 7 | q-1 |
| 7 | q-2 |
| 3 | q-3 |
| 4 | q-4 |
| 5 | q-5 |
| 1 | q-6 |
| 1 | q-7 |
| 6 | q-8 |
| 5 | q-9 |
| 71 | q-a |
| 107 | q-b |
| 130 | q-c |
| 76 | q-d |
| 43 | q-e |
| 67 | q-f |
| 40 | q-g |
| 25 | q-h |
| 54 | q-i |
| 14 | q-j |
| 22 | q-k |
| 90 | q-l |
| 105 | q-m |
| 47 | q-n |
| 27 | q-o |
| 128 | q-p |
| 14 | q-q |
| 57 | q-r |
| 183 | q-s |
| 122 | q-t |
| 20 | q-u |
| 26 | q-v |
| 41 | q-w |
| 6 | q-x |
| 5 | q-y |
| 18 | q-z |