| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| what historical event happened in 1999 | 0.61 | 0.8 | 2154 | 14 | 38 |
| what | 0.39 | 0.5 | 2812 | 33 | 4 |
| historical | 0.39 | 0.4 | 5165 | 60 | 10 |
| event | 1.24 | 0.4 | 3773 | 55 | 5 |
| happened | 1.15 | 0.2 | 9524 | 28 | 8 |
| in | 0.39 | 0.7 | 3478 | 16 | 2 |
| 1999 | 1.57 | 0.9 | 8031 | 89 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what historical event happened in 1999 | 1.35 | 0.4 | 3683 | 6 |
