| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| how many aircraft were used in ww2 | 1.43 | 0.1 | 3888 | 99 |
| how many aircrafts were used in ww1 | 1.48 | 1 | 9012 | 100 |
| how many planes were in ww1 | 0.43 | 0.1 | 6481 | 61 |
| how were aircrafts used in ww1 | 0.93 | 0.3 | 7451 | 65 |
| how many planes were used in ww2 | 0.21 | 0.7 | 2258 | 22 |
| how many planes were made in ww2 | 0.19 | 0.7 | 1294 | 14 |
| were airplanes used in ww1 | 1.62 | 0.3 | 3421 | 45 |
| how many aircraft were built in ww2 | 0.24 | 0.7 | 2850 | 46 |
| were there planes in world war 1 | 0.42 | 1 | 7630 | 49 |
| did ww1 have planes | 0.41 | 0.9 | 3300 | 56 |
| list of ww1 aircraft | 0.86 | 1 | 3268 | 73 |
| how many planes were produced in ww2 | 1.29 | 0.5 | 5024 | 97 |
| how many airplanes were built in ww2 | 1.44 | 0.3 | 907 | 53 |
| all aircraft used in ww2 | 1.69 | 1 | 3835 | 97 |
| how many planes were used in ww1 | 1.07 | 0.4 | 2203 | 94 |
| number of us aircraft in ww2 | 1.99 | 0.6 | 5413 | 4 |
| list of aircraft in ww2 | 0.26 | 0.7 | 5705 | 33 |
| were airplanes used in ww2 | 1.25 | 0.1 | 2411 | 30 |
| list of planes used in ww2 | 0.98 | 1 | 2669 | 29 |
| aircraft used in world war 2 | 1.71 | 0.1 | 3142 | 80 |
| all planes used in ww2 | 1.06 | 0.8 | 4324 | 57 |
| types of ww2 aircraft | 0.45 | 0.9 | 1558 | 19 |
| which aircraft was most used during wwii | 1.51 | 0.3 | 5681 | 18 |
