| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| 1957 penny error list | 0.74 | 0.2 | 2138 | 15 | 21 |
| 1957 | 0.87 | 0.1 | 3140 | 11 | 4 |
| penny | 0.52 | 0.5 | 6723 | 76 | 5 |
| error | 0.77 | 0.6 | 5069 | 25 | 5 |
| list | 1.03 | 0.3 | 355 | 67 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| 1957 penny error list | 0.06 | 0.7 | 4033 | 22 |
