| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| 1981 penny error list | 0.82 | 0.4 | 9839 | 93 | 21 |
| 1981 | 0.34 | 0.7 | 8702 | 2 | 4 |
| penny | 0.95 | 0.4 | 3476 | 98 | 5 |
| error | 0.11 | 0.1 | 8422 | 30 | 5 |
| list | 1.44 | 1 | 1373 | 76 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| 1981 penny error list | 0.5 | 0.7 | 3310 | 78 |
| 1981 penny errors | 1.75 | 0.6 | 2558 | 11 |
| 1981 penny errors value | 1.84 | 1 | 2018 | 81 |
| 1981 d penny error list | 0.71 | 0.3 | 1554 | 5 |
| rare 1981 d error penny | 1.5 | 0.8 | 9632 | 89 |
| lincoln penny 1981 d error | 0.76 | 1 | 6091 | 64 |
| rare 1981 penny worth | 0.91 | 0.5 | 3067 | 59 |
| is a 1981 penny worth anything | 0.3 | 1 | 1520 | 90 |
| rare 1982 penny error | 0.11 | 0.1 | 9528 | 42 |
| worth of 1981 penny | 1.2 | 0.7 | 6208 | 63 |
| new penny 1981 worth | 0.05 | 1 | 9099 | 87 |
| is a 1981 penny valuable | 0.36 | 0.2 | 9365 | 69 |
| how much does a 1981 penny cost | 0.31 | 0.4 | 2006 | 72 |
| what is a 1981 penny worth today | 0.84 | 0.9 | 3764 | 44 |
| value 1981 no mint mark penny | 1.64 | 0.1 | 4564 | 30 |
| most expensive 1981 penny | 1.75 | 0.9 | 9218 | 70 |
| value of a 1981 penny | 0.23 | 0.5 | 8111 | 72 |
| is a 1981 penny copper | 0.93 | 0.4 | 14 | 50 |
| what makes a 1981 penny valuable | 1.84 | 0.4 | 2370 | 99 |
| coin value penny 1981 | 1.65 | 0.1 | 4214 | 87 |
