| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| pnas impact factors | 0.79 | 0.8 | 1775 | 67 | 19 |
| pnas | 1.53 | 0.8 | 7905 | 28 | 4 |
| impact | 1.2 | 0.2 | 9161 | 8 | 6 |
| factors | 0.82 | 0.7 | 1259 | 85 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| pnas impact factors | 1.99 | 0.1 | 9981 | 37 |
| pnas impact factor 2024 | 1.48 | 1 | 5177 | 71 |
| pnas impact factor 2023 | 0.59 | 0.6 | 7180 | 66 |
| pnas impact factor 2022 | 1.99 | 0.2 | 7765 | 64 |
| pnas impact factor 2021 | 1.02 | 0.6 | 8398 | 77 |
| pnas impact factor 2020 | 1.28 | 0.1 | 4497 | 8 |
| pnas impact factor bioxbio | 1.68 | 0.3 | 9345 | 65 |
| pnas impact factor 2019 | 1.9 | 1 | 9413 | 89 |
| pnas impact factor 2015 | 0.77 | 1 | 959 | 8 |
| pnas impact factor 2016 | 0.7 | 0.4 | 7071 | 31 |
| pnas impact factor 2018 | 1.75 | 0.9 | 3892 | 57 |
