| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what factor is not in the drake equation | 0.55 | 0.3 | 7964 | 85 |
| what is the drake equation answer | 1.53 | 0.7 | 7295 | 37 |
| what is the drake equation | 0.68 | 0.5 | 3762 | 36 |
| variables of the drake equation | 1.9 | 0.8 | 2405 | 23 |
| the drake equation explained | 1.14 | 0.5 | 9264 | 1 |
| what does the drake equation describe | 0.71 | 0.4 | 3179 | 60 |
| the drake equation is attempting to find | 1.79 | 0.2 | 7863 | 87 |
| what does the drake equation represent | 1.42 | 0.9 | 2327 | 86 |
| what is the drake equation ll | 0.3 | 0.4 | 1033 | 44 |
| the answer to the drake equation | 1.42 | 0.9 | 3673 | 87 |
| numbers for the drake equation | 1.97 | 0.6 | 2257 | 44 |
| the drake equation expresses | 1.05 | 0.6 | 2498 | 67 |
| the drake equation was an attempt to | 1.44 | 0.9 | 3521 | 67 |
| the drake equation simplified | 0.9 | 0.2 | 1098 | 52 |
| the drake equation book | 0.96 | 0.9 | 3384 | 12 |
