| Count | Prefix |
|---|---|
| 107 | vt- |
| 23 | vt. |
| 2 | vt0 |
| 19 | vt1 |
| 23 | vt2 |
| 5 | vt3 |
| 14 | vt4 |
| 7 | vt5 |
| 7 | vt6 |
| 4 | vt7 |
| 4 | vt8 |
| 15 | vt9 |
| 247 | vta |
| 160 | vtb |
| 295 | vtc |
| 82 | vtd |
| 463 | vte |
| 105 | vtf |
| 116 | vtg |
| 134 | vth |
| 222 | vti |
| 20 | vtj |
| 58 | vtk |
| 145 | vtl |
| 157 | vtm |
| 95 | vtn |
| 255 | vto |
| 119 | vtp |
| 7 | vtq |
| 296 | vtr |
| 314 | vts |
| 149 | vtt |
| 111 | vtu |
| 114 | vtv |
| 96 | vtw |
| 69 | vtx |
| 24 | vty |
| 17 | vtz |