| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| what led to the nullification crisis | 1.99 | 0.3 | 6178 | 64 | 36 |
| what | 0.3 | 0.1 | 747 | 76 | 4 |
| led | 1.4 | 0.3 | 2412 | 78 | 3 |
| to | 0.39 | 0.5 | 2215 | 4 | 2 |
| the | 1.11 | 0.6 | 2311 | 42 | 3 |
| nullification | 1.22 | 0.9 | 6176 | 74 | 13 |
| crisis | 0.54 | 0.7 | 460 | 16 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what led to the nullification crisis | 0.13 | 0.7 | 4369 | 4 |
