| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| letter from birmingham jail purpose | 1.32 | 0.8 | 7741 | 31 | 35 |
| letter | 1.15 | 0.3 | 9442 | 6 | 6 |
| from | 0.01 | 0.8 | 4417 | 16 | 4 |
| birmingham | 1.03 | 0.6 | 4380 | 88 | 10 |
| jail | 1.38 | 0.8 | 1452 | 93 | 4 |
| purpose | 1.61 | 0.7 | 7011 | 58 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| letter from birmingham jail purpose | 0.77 | 0.1 | 9302 | 96 |
