| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| how long did spanish flu outbreak last | 1.94 | 0.8 | 1670 | 68 |
| how long did spanish flu pandemic last | 1.13 | 0.6 | 6955 | 28 |
| how long did spanish flu end | 0.79 | 0.5 | 1895 | 71 |
| how long did spanish influenza last | 1.35 | 0.6 | 4412 | 23 |
| how long was the spanish flu epidemic | 0.36 | 0.3 | 7364 | 89 |
| how long was spanish flu around | 1.3 | 0.5 | 2347 | 90 |
| how long was the spanish flu duration | 0.34 | 0.5 | 8976 | 58 |
| spanish flu lasted 3 years | 1.65 | 0.3 | 1905 | 46 |
| how long did spanish flu epidemic last | 0.4 | 0.5 | 9142 | 80 |
| how long spanish flu pandemic lasted | 0.88 | 0.7 | 1789 | 95 |
| spanish flu pandemic how long did it last | 1.79 | 0.6 | 1976 | 45 |
| spanish flu pandemic last how long | 0.34 | 0.2 | 8257 | 32 |
