| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| before anesthesia was invented | 0.57 | 0.5 | 9727 | 13 | 30 |
| before | 1.08 | 0.1 | 9635 | 31 | 6 |
| anesthesia | 0.23 | 0.8 | 4458 | 24 | 10 |
| was | 1.32 | 0.8 | 9155 | 93 | 3 |
| invented | 1.34 | 0.4 | 8059 | 72 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| before anesthesia was invented | 0.58 | 0.6 | 4137 | 77 |
