| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| pnas impact factor 2016 | 1.74 | 0.9 | 7706 | 48 | 23 |
| pnas | 0.31 | 0.3 | 5792 | 87 | 4 |
| impact | 1.1 | 0.2 | 7806 | 24 | 6 |
| factor | 1.36 | 0.7 | 8134 | 83 | 6 |
| 2016 | 1.11 | 0.6 | 8331 | 18 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| pnas impact factor 2016 | 0.21 | 0.4 | 8678 | 78 |
