| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| what century was 1990 | 0.36 | 0.3 | 6124 | 11 | 21 |
| what | 0.54 | 0.3 | 1550 | 68 | 4 |
| century | 1.15 | 0.1 | 7163 | 13 | 7 |
| was | 1.46 | 0.3 | 3898 | 65 | 3 |
| 1990 | 1.97 | 0.9 | 2466 | 92 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what century was 1990 | 0.99 | 0.1 | 1081 | 37 |
| what century was 1980 | 0.53 | 0.7 | 3655 | 54 |
| what century was 1900 | 0.19 | 0.9 | 4823 | 4 |
| what century was 1999 | 1.16 | 0.7 | 3423 | 17 |
| what century was 1994 | 0.19 | 0.5 | 3536 | 51 |
| what century was 1996 | 0.59 | 0.9 | 8070 | 50 |
| what century was 1998 | 0.44 | 0.4 | 4213 | 61 |
| what century was 1993 | 0.29 | 0.2 | 5273 | 14 |
| what century was 1995 | 0.31 | 0.2 | 5876 | 79 |
| what century was 1997 | 0.82 | 1 | 2993 | 39 |
| what century was 1901 | 0.18 | 0.4 | 9183 | 10 |
| what century was 1970 | 1.4 | 0.1 | 3650 | 85 |
| 1990 buick century | 1.31 | 1 | 4482 | 23 |
| what century was the 1990s | 1.85 | 0.9 | 3486 | 41 |
| century 1990 | 1.6 | 0.6 | 5075 | 38 |
