| Count | Prefix |
|---|---|
| 716 | 2- |
| 35 | 2. |
| 4,500 | 20 |
| 4,306 | 21 |
| 1,704 | 22 |
| 1,341 | 23 |
| 7,594 | 24 |
| 1,250 | 25 |
| 748 | 26 |
| 660 | 27 |
| 808 | 28 |
| 647 | 29 |
| 752 | 2a |
| 1,678 | 2b |
| 1,518 | 2c |
| 1,096 | 2d |
| 584 | 2e |
| 715 | 2f |
| 793 | 2g |
| 604 | 2h |
| 453 | 2i |
| 212 | 2j |
| 605 | 2k |
| 566 | 2l |
| 1,136 | 2m |
| 1,459 | 2n |
| 312 | 2o |
| 934 | 2p |
| 112 | 2q |
| 592 | 2r |
| 1,188 | 2s |
| 849 | 2t |
| 291 | 2u |
| 216 | 2v |
| 646 | 2w |
| 371 | 2x |
| 165 | 2y |
| 108 | 2z |