| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| how many teams were in the nfl in 1969 | 0.75 | 0.4 | 1994 | 62 |
| how many teams were in the nfl in 1965 | 0.84 | 0.6 | 9835 | 87 |
| how many teams were in the nfl in 1967 | 1.1 | 0.5 | 5971 | 6 |
| how many teams were in the nfl in 1960 | 0.65 | 0.5 | 9476 | 39 |
| how many teams were in the nfl in 1964 | 0.43 | 0.2 | 3175 | 27 |
| how many teams were in the nfl in 1991 | 0.62 | 0.6 | 966 | 10 |
| how many teams were in the nfl in 1994 | 0.95 | 0.4 | 9456 | 70 |
| how many teams were in the nfl in 1996 | 1.78 | 0.3 | 477 | 73 |
| how many teams were in the nfl in 1966 | 1 | 0.5 | 9930 | 55 |
| how many teams were in the nfl in 1963 | 0.21 | 1 | 3740 | 65 |
| how many nfl teams were there in 1969 | 1.56 | 0.2 | 8570 | 25 |
