| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| project blue book declassified documents | 0.68 | 0.3 | 2008 | 98 | 40 |
| project | 0.9 | 0.1 | 1576 | 62 | 7 |
| blue | 1.26 | 0.5 | 123 | 70 | 4 |
| book | 0.67 | 0.5 | 4104 | 69 | 4 |
| declassified | 0.59 | 1 | 4377 | 4 | 12 |
| documents | 1.91 | 0.5 | 2373 | 13 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| project blue book declassified documents | 1.3 | 0.3 | 1370 | 11 |
