| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| history of the railroads | 0.48 | 0.8 | 639 | 58 | 24 |
| history | 1.14 | 0.2 | 2430 | 26 | 7 |
| of | 1.29 | 1 | 6534 | 34 | 2 |
| the | 0.84 | 1 | 4076 | 9 | 3 |
| railroads | 0.87 | 0.6 | 6559 | 8 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| history of the railroads | 0.68 | 0.9 | 358 | 50 |
