| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| number of helicopter pilots killed in vietnam | 0.67 | 0.9 | 7872 | 21 | 45 |
| number | 0.1 | 0.4 | 829 | 4 | 6 |
| of | 1.49 | 0.6 | 5996 | 53 | 2 |
| helicopter | 0.41 | 0.3 | 1526 | 13 | 10 |
| pilots | 1.86 | 0.2 | 5707 | 84 | 6 |
| killed | 1.18 | 0.9 | 5226 | 3 | 6 |
| in | 1.14 | 0.8 | 9573 | 32 | 2 |
| vietnam | 0.46 | 0.4 | 6217 | 91 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| number of helicopter pilots killed in vietnam | 0.18 | 1 | 5652 | 44 |
| how many helicopter pilots served in vietnam | 0.48 | 0.9 | 8178 | 26 |
| number of helicopters lost in vietnam | 1.54 | 0.7 | 5774 | 11 |
| how many pilots died in vietnam | 0.03 | 1 | 9143 | 4 |
| helicopter pilots in vietnam war | 1.21 | 1 | 6078 | 46 |
| how many helicopters crashed in vietnam | 1.99 | 0.8 | 1106 | 26 |
| helicopter pilots in vietnam | 1.9 | 0.2 | 9265 | 72 |
| helicopter losses in vietnam war | 1.9 | 0.4 | 7799 | 50 |
| pilots killed in vietnam | 0.97 | 0.4 | 2608 | 4 |
| helicopter crashes in vietnam war | 1.18 | 0.9 | 95 | 73 |
| list of vietnam helicopter pilots | 1.18 | 0.4 | 6993 | 81 |
| how many helicopters lost in vietnam | 0.55 | 0.6 | 1060 | 34 |
| pictures of vietnam helicopter pilots | 1.14 | 0.3 | 2085 | 92 |
| attack helicopters in vietnam | 0.79 | 0.7 | 5630 | 77 |
| helicopters shot down in vietnam | 1.18 | 0.8 | 2905 | 31 |
| vietnam war attack helicopters | 1.14 | 1 | 9644 | 27 |
