| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| what was the world population in 1990 | 0.8 | 0.8 | 3971 | 73 | 37 |
| what | 1.39 | 0.3 | 2454 | 28 | 4 |
| was | 0.66 | 0.8 | 9428 | 97 | 3 |
| the | 1.12 | 0.9 | 3999 | 31 | 3 |
| world | 0.54 | 0.2 | 4982 | 50 | 5 |
| population | 0.67 | 0.6 | 1194 | 67 | 10 |
| in | 1.44 | 0.3 | 3323 | 46 | 2 |
| 1990 | 0.12 | 0.7 | 4010 | 68 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what was the world population in 1990 | 0.55 | 0.8 | 9175 | 24 |
| what was the world population in 1980 | 0.53 | 0.5 | 3036 | 26 |
| what was the world population in 1992 | 1.86 | 0.1 | 5712 | 84 |
| what was the world population in 1900 | 0.83 | 0.5 | 9167 | 24 |
| what was the world population in 1991 | 0.47 | 0.5 | 7441 | 12 |
| what was the world population in 1999 | 1.45 | 0.7 | 2373 | 96 |
| what was the world population in 1997 | 0.14 | 0.2 | 8796 | 51 |
| what was the world population in 1994 | 1.12 | 0.8 | 9894 | 37 |
| what was the world population in 1995 | 1.9 | 0.7 | 3825 | 80 |
| what was the world population in 1998 | 0.66 | 0.6 | 7836 | 41 |
| what was the world population in 1993 | 1.13 | 0.5 | 9158 | 30 |
| what was the world population in 1996 | 1.8 | 0.4 | 4108 | 15 |
| what was the world population in 1970 | 1.61 | 0.2 | 3168 | 26 |
| what was the world population in 1950 | 0.5 | 0.3 | 9459 | 69 |
| what was the world population in 1960 | 1.15 | 0.1 | 1737 | 32 |
| world population 1990 | 0.09 | 0.9 | 7298 | 96 |
