| Count | Prefix |
|---|---|
| 113 | gf- |
| 19 | gf. |
| 2 | gf0 |
| 12 | gf1 |
| 14 | gf2 |
| 14 | gf3 |
| 7 | gf4 |
| 6 | gf5 |
| 1 | gf6 |
| 5 | gf7 |
| 4 | gf8 |
| 5 | gf9 |
| 307 | gfa |
| 138 | gfb |
| 303 | gfc |
| 108 | gfd |
| 186 | gfe |
| 92 | gff |
| 149 | gfg |
| 94 | gfh |
| 364 | gfi |
| 24 | gfj |
| 116 | gfk |
| 160 | gfl |
| 200 | gfm |
| 101 | gfn |
| 333 | gfo |
| 162 | gfp |
| 7 | gfq |
| 186 | gfr |
| 315 | gfs |
| 191 | gft |
| 87 | gfu |
| 27 | gfv |
| 111 | gfw |
| 196 | gfx |
| 42 | gfy |
| 24 | gfz |