| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| history of water filtration | 1.31 | 0.8 | 4064 | 26 | 27 |
| history | 0.27 | 0.7 | 9094 | 21 | 7 |
| of | 1.07 | 0.2 | 8533 | 87 | 2 |
| water | 1.88 | 0.4 | 3185 | 51 | 5 |
| filtration | 0.34 | 0.1 | 8569 | 47 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| history of water filtration | 1.96 | 0.9 | 7026 | 96 |
