| Count | Prefix |
|---|---|
| 396 | spa- |
| 24 | spa. |
| 1 | spa0 |
| 13 | spa1 |
| 24 | spa2 |
| 6 | spa3 |
| 14 | spa4 |
| 3 | spa5 |
| 2 | spa6 |
| 3 | spa7 |
| 3 | spa8 |
| 3 | spa9 |
| 288 | spaa |
| 160 | spab |
| 9,030 | spac |
| 493 | spad |
| 227 | spae |
| 122 | spaf |
| 394 | spag |
| 127 | spah |
| 1,180 | spai |
| 43 | spaj |
| 73 | spak |
| 419 | spal |
| 1,486 | spam |
| 4,158 | span |
| 60 | spao |
| 160 | spap |
| 16 | spaq |
| 7,946 | spar |
| 714 | spas |
| 970 | spat |
| 155 | spau |
| 87 | spav |
| 219 | spaw |
| 16 | spax |
| 85 | spay |
| 542 | spaz |