| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| history of instrument flying | 0.73 | 0.6 | 995 | 47 | 28 |
| history | 0.32 | 0.9 | 2515 | 51 | 7 |
| of | 1.88 | 0.3 | 9416 | 37 | 2 |
| instrument | 1.57 | 0.4 | 7474 | 22 | 10 |
| flying | 0.44 | 0.9 | 6367 | 19 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| history of instrument flying | 0.57 | 0.1 | 5077 | 20 |
