| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| historical development of health education | 1.72 | 0.9 | 9212 | 19 | 42 |
| historical | 0.87 | 0.8 | 7341 | 83 | 10 |
| development | 0.62 | 0.1 | 3751 | 48 | 11 |
| of | 0.12 | 0.1 | 4918 | 19 | 2 |
| health | 0.07 | 0.6 | 9756 | 58 | 6 |
| education | 0.83 | 0.3 | 1557 | 25 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| historical development of health education | 1.97 | 0.5 | 3851 | 20 |
