| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| letter from birmingham jail audio | 1.29 | 0.5 | 8166 | 96 | 33 |
| letter | 0.9 | 0.7 | 7005 | 90 | 6 |
| from | 0.88 | 0.1 | 9509 | 30 | 4 |
| birmingham | 1.6 | 0.2 | 4398 | 45 | 10 |
| jail | 1.9 | 0.7 | 3364 | 66 | 4 |
| audio | 0.82 | 0.1 | 391 | 45 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| letter from birmingham jail audio | 0.74 | 0.2 | 6149 | 48 |
