| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| when were aviators invented | 0.05 | 0.8 | 4395 | 57 | 27 |
| when | 0.14 | 0.5 | 9655 | 89 | 4 |
| were | 0.67 | 0.5 | 3452 | 25 | 4 |
| aviators | 0.8 | 0.2 | 5254 | 75 | 8 |
| invented | 0.24 | 0.4 | 3046 | 7 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| when were aviators invented | 0.63 | 0.7 | 897 | 29 |
