| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| richardson et al 2009 | 0.95 | 0.6 | 9251 | 27 | 21 |
| richardson | 1.69 | 1 | 3869 | 58 | 10 |
| et | 1.27 | 0.1 | 488 | 4 | 2 |
| al | 1.19 | 0.8 | 3027 | 96 | 2 |
| 2009 | 0.79 | 0.5 | 2738 | 70 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| richardson et al 2009 | 0.59 | 0.6 | 7108 | 68 |
