| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what happened in december 1969 | 0.34 | 0.5 | 3137 | 89 |
| what happened in december 1967 | 0.61 | 0.5 | 4040 | 24 |
| what happened in december 1964 | 0.02 | 0.9 | 4648 | 20 |
| what happened in december 1991 | 0.8 | 0.1 | 8679 | 88 |
| what happened in december 1997 | 0.98 | 0.4 | 2800 | 93 |
| what happened in december 1963 | 0.43 | 0.4 | 5597 | 99 |
| what happened in december 1966 | 0.21 | 0.8 | 8348 | 33 |
| what happened in december 1979 | 0.29 | 0.3 | 1256 | 67 |
| what happened in december 1972 | 0.28 | 0.4 | 5127 | 99 |
| what happened in december 1953 | 0.51 | 0.9 | 9234 | 28 |
| what happened in december 1914 | 1.04 | 0.6 | 8907 | 30 |
| what happened in december 1941 | 0.38 | 0.1 | 8422 | 79 |
| what happened in december 1973 | 0.74 | 0.3 | 9195 | 1 |
| what happened in december 1917 | 0.18 | 0.7 | 7724 | 15 |
| what happened on december 31 1969 | 1.52 | 1 | 3080 | 29 |
| what happened on december 31st 1969 | 0.38 | 0.8 | 51 | 1 |
