| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| history of aviation fuel efficiency | 1.29 | 0.7 | 5505 | 57 | 35 |
| history | 1.07 | 1 | 4413 | 62 | 7 |
| of | 0.03 | 0.5 | 1576 | 38 | 2 |
| aviation | 0.09 | 0.8 | 4924 | 12 | 8 |
| fuel | 1.38 | 0.4 | 5285 | 50 | 4 |
| efficiency | 0.31 | 1 | 8750 | 53 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| history of aviation fuel efficiency | 1.85 | 0.6 | 9571 | 81 |
