| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| when was literature invented | 0.59 | 0.5 | 5264 | 6 | 28 |
| when | 0.3 | 0.9 | 9232 | 10 | 4 |
| was | 1.97 | 0.6 | 6570 | 12 | 3 |
| literature | 1.18 | 0.8 | 577 | 88 | 10 |
| invented | 0.06 | 1 | 330 | 47 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| when was literature invented | 1.66 | 0.1 | 6339 | 63 |
