| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| corvee system | 0.93 | 0.7 | 2995 | 56 | 13 |
| corvee | 0.6 | 0.1 | 5981 | 51 | 6 |
| system | 1.49 | 0.5 | 5771 | 59 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| corvee system | 1.3 | 0.5 | 1679 | 30 |
| corvee system stellaris | 1.69 | 0.4 | 8345 | 9 |
| climate and corvee system | 0.29 | 0.8 | 8979 | 45 |
| climate a corvee system | 1.31 | 0.5 | 7611 | 94 |
| corvee labor system | 0.4 | 0.8 | 8083 | 37 |
| did the song dynasty use the corvee system | 1.29 | 1 | 3998 | 25 |
