| Count | Prefix |
|---|---|
| 330 | sb- |
| 28 | sb. |
| 7 | sb0 |
| 37 | sb1 |
| 51 | sb2 |
| 24 | sb3 |
| 22 | sb4 |
| 11 | sb5 |
| 7 | sb6 |
| 15 | sb7 |
| 8 | sb8 |
| 10 | sb9 |
| 969 | sba |
| 295 | sbb |
| 1,222 | sbc |
| 388 | sbd |
| 564 | sbe |
| 259 | sbf |
| 297 | sbg |
| 281 | sbh |
| 649 | sbi |
| 83 | sbj |
| 171 | sbk |
| 413 | sbl |
| 468 | sbm |
| 207 | sbn |
| 548 | sbo |
| 361 | sbp |
| 18 | sbq |
| 501 | sbr |
| 1,151 | sbs |
| 399 | sbt |
| 196 | sbu |
| 128 | sbv |
| 199 | sbw |
| 45 | sbx |
| 99 | sby |
| 38 | sbz |