| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| history of transportation pdf | 0.12 | 0.3 | 9474 | 76 | 29 |
| history | 0.36 | 1 | 1530 | 8 | 7 |
| of | 1.44 | 0.9 | 2105 | 11 | 2 |
| transportation | 0.23 | 0.2 | 5158 | 43 | 14 |
| 1.47 | 0.7 | 4462 | 38 | 3 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| history of transportation pdf | 1.23 | 1 | 4843 | 83 |
