| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| the permissible radiation dose per year is | 1.63 | 0.4 | 7549 | 34 | 42 |
| the | 0.31 | 0.5 | 8357 | 26 | 3 |
| permissible | 1.76 | 0.4 | 1227 | 77 | 11 |
| radiation | 1.43 | 0.2 | 1336 | 56 | 9 |
| dose | 0.13 | 0.7 | 669 | 71 | 4 |
| per | 0.04 | 0.6 | 3166 | 94 | 3 |
| year | 1.26 | 0.2 | 2132 | 46 | 4 |
| is | 1.31 | 0.5 | 1306 | 42 | 2 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| the permissible radiation dose per year is | 0.78 | 0.6 | 492 | 44 |
