| Count | Prefix |
|---|---|
| 356 | tk- |
| 24 | tk. |
| 8 | tk0 |
| 27 | tk1 |
| 20 | tk2 |
| 12 | tk3 |
| 16 | tk4 |
| 7 | tk5 |
| 7 | tk6 |
| 8 | tk7 |
| 114 | tk8 |
| 15 | tk9 |
| 272 | tka |
| 122 | tkb |
| 215 | tkc |
| 245 | tkd |
| 175 | tke |
| 82 | tkf |
| 134 | tkg |
| 83 | tkh |
| 173 | tki |
| 37 | tkj |
| 72 | tkk |
| 106 | tkl |
| 198 | tkm |
| 100 | tkn |
| 305 | tko |
| 170 | tkp |
| 8 | tkq |
| 119 | tkr |
| 357 | tks |
| 221 | tkt |
| 64 | tku |
| 35 | tkv |
| 90 | tkw |
| 12 | tkx |
| 50 | tky |
| 28 | tkz |