| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| events that happened in 1981 | 1.54 | 0.6 | 1199 | 90 |
| events that happened in 1980 | 0.51 | 1 | 5991 | 41 |
| events that happened in 1989 | 1.8 | 0.8 | 332 | 70 |
| events that happened in 1991 | 2 | 0.5 | 8156 | 99 |
| events that happened in 1961 | 1.48 | 0.2 | 8623 | 23 |
| events that happened in 1980s in america | 1.48 | 0.4 | 4077 | 97 |
| events that happened in 1986 | 0.52 | 0.9 | 7048 | 15 |
| events that happened in 1983 | 1.49 | 0.5 | 4741 | 57 |
| events that happened in 1988 | 1.74 | 0.1 | 4371 | 47 |
| events that happened in 1985 | 1.01 | 0.1 | 1899 | 28 |
| events that happened in 1984 | 1.63 | 0.5 | 1128 | 83 |
| events that happened in 1987 | 0.45 | 0.2 | 1854 | 15 |
| events that happened in 1982 | 1.48 | 0.5 | 8824 | 13 |
| events that happened in 1901 australia | 1.59 | 0.6 | 6498 | 69 |
| important event that happened in year 1981 | 0.09 | 0.1 | 9767 | 26 |
| what events happened in 1981 | 0.05 | 0.1 | 8074 | 50 |
| what world events happened in 1981 | 0.4 | 0.5 | 9555 | 87 |
