| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| when did homework exist | 1.63 | 0.8 | 8566 | 41 | 23 |
| when | 1.74 | 0.9 | 8215 | 32 | 4 |
| did | 0.07 | 0.3 | 7542 | 35 | 3 |
| homework | 0.4 | 0.6 | 9394 | 94 | 8 |
| exist | 0.81 | 0.9 | 6703 | 49 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| when did homework exist | 1.37 | 0.6 | 3141 | 25 |
| why does homework exist | 0.55 | 0.5 | 9593 | 57 |
| should homework exist | 1.75 | 0.9 | 2047 | 52 |
| how did homework start | 1.73 | 0.4 | 4012 | 59 |
| where did homework come from | 1.16 | 0.1 | 4723 | 21 |
| when was homework first invented | 1.18 | 0.9 | 8549 | 89 |
| who created homework and when | 0.78 | 0.4 | 6904 | 59 |
| how was homework created | 0.42 | 0.3 | 9697 | 43 |
| what is the origin of homework | 0.27 | 0.3 | 9376 | 83 |
| what country invented homework | 0.01 | 0.7 | 5348 | 87 |
