| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| pekeris | 1.43 | 0.1 | 6390 | 23 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| pekeris | 1.77 | 0.9 | 2318 | 79 |
| pekeris waveguide | 0.01 | 0.2 | 9223 | 69 |
| pekeris mode | 0.73 | 0.2 | 7298 | 83 |
| pekeris waves | 0.45 | 0.8 | 7731 | 24 |
| pekeris 1959 | 0.16 | 0.3 | 7585 | 11 |
| pekeris approximation | 1.34 | 0.3 | 3075 | 12 |
