| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| nelson mandela released from prison 1990 | 1.08 | 0.6 | 2745 | 44 |
| nelson mandela released from prison day | 0.59 | 0.5 | 4191 | 72 |
| when was mandela released from prison | 0.58 | 0.8 | 563 | 60 |
| nelson mandela released from jail | 1.01 | 0.5 | 7082 | 53 |
| what year was mandela released from prison | 0.57 | 0.9 | 7888 | 98 |
| nelson mandela prison release date | 0.28 | 0.8 | 6181 | 24 |
| nelson mandela prison date | 1.91 | 0.1 | 552 | 11 |
