| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| instrumental variable drug abuse | 1.69 | 1 | 5775 | 23 | 32 |
| instrumental | 0.07 | 0.4 | 7598 | 91 | 12 |
| variable | 0.37 | 0.7 | 6479 | 31 | 8 |
| drug | 0.98 | 0.7 | 6086 | 65 | 4 |
| abuse | 0.09 | 1 | 607 | 61 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| instrumental variable drug abuse | 0.43 | 1 | 3978 | 36 |
