| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| shuttle program | 1.92 | 0.5 | 3568 | 26 | 15 |
| shuttle | 0.82 | 0.9 | 8157 | 39 | 7 |
| program | 0.11 | 0.9 | 7392 | 7 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| shuttle program | 0.38 | 0.1 | 2681 | 33 |
| shuttle program nasa | 0.56 | 0.1 | 7630 | 19 |
| shuttle programm | 0.41 | 0.6 | 6602 | 10 |
| shuttle program end | 0.57 | 0.2 | 7138 | 71 |
| shuttle program history | 1.97 | 0.2 | 8524 | 51 |
| shuttle program replacement | 0.58 | 0.1 | 111 | 14 |
| space shuttle program | 0.37 | 0.5 | 9560 | 66 |
| nasa space shuttle program | 0.75 | 0.5 | 2194 | 96 |
| why did the space shuttle program end | 0.09 | 0.4 | 4326 | 62 |
| when did the space shuttle program end | 0.28 | 0.4 | 2128 | 78 |
| us space shuttle program | 1.12 | 0.3 | 6643 | 84 |
| when did the shuttle program end | 0.05 | 0.4 | 6362 | 23 |
| shuttle programs | 1.59 | 0.7 | 4960 | 49 |
| why did nasa end the space shuttle program | 0.86 | 0.1 | 9120 | 67 |
| nasa space shuttle program history | 1.09 | 0.1 | 2700 | 42 |
| should nasa restart the space shuttle program | 0.21 | 0.1 | 3286 | 36 |
| 1978 nasa space shuttle program | 0.54 | 0.2 | 4643 | 8 |
| nasa's space shuttle program | 1.36 | 0.1 | 8034 | 89 |
