| Count | Prefix |
|---|---|
| 128 | po- |
| 24 | po. |
| 4 | po0 |
| 22 | po1 |
| 10 | po2 |
| 10 | po3 |
| 12 | po4 |
| 3 | po5 |
| 3 | po6 |
| 7 | po7 |
| 7 | po8 |
| 3 | po9 |
| 265 | poa |
| 538 | pob |
| 5,226 | poc |
| 4,154 | pod |
| 3,114 | poe |
| 217 | pof |
| 979 | pog |
| 653 | poh |
| 5,742 | poi |
| 191 | poj |
| 4,186 | pok |
| 26,785 | pol |
| 2,547 | pom |
| 5,147 | pon |
| 5,690 | poo |
| 10,277 | pop |
| 68 | poq |
| 31,374 | por |
| 16,600 | pos |
| 5,561 | pot |
| 2,636 | pou |
| 640 | pov |
| 18,376 | pow |
| 105 | pox |
| 293 | poy |
| 832 | poz |