| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| the history of commercial spaceflight | 1.82 | 1 | 4724 | 100 | 37 |
| the | 1.74 | 1 | 8686 | 50 | 3 |
| history | 1.57 | 0.5 | 8310 | 30 | 7 |
| of | 1.17 | 0.2 | 3660 | 6 | 2 |
| commercial | 1.94 | 0.4 | 2853 | 77 | 10 |
| spaceflight | 0.07 | 1 | 3146 | 30 | 11 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| the history of commercial spaceflight | 0.45 | 0.4 | 7417 | 93 |
