| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| railroad in us history | 0.26 | 0.3 | 7984 | 3 | 22 |
| railroad | 1.88 | 0.7 | 9305 | 33 | 8 |
| in | 1.06 | 0.5 | 4866 | 12 | 2 |
| us | 0.01 | 0.4 | 8162 | 16 | 2 |
| history | 0.51 | 0.4 | 6489 | 31 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| railroad in us history | 0.28 | 1 | 9623 | 61 |
