| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| how long did the spanish flu last | 1.82 | 0.3 | 6553 | 24 |
| how long did spanish flu epidemic last | 1.94 | 0.4 | 9491 | 32 |
| how many years did spanish flu last | 0.36 | 0.4 | 5533 | 86 |
| how long did the spanish influenza last | 1.04 | 0.1 | 6877 | 44 |
| spanish flu lasted how long | 0.58 | 0.1 | 3714 | 19 |
| spanish flu in the uk | 0.58 | 0.3 | 7784 | 20 |
| how did spanish flu end | 0.64 | 0.8 | 5432 | 2 |
| spanish flu deaths in uk | 0.35 | 0.9 | 8722 | 36 |
| how spanish flu ended | 0.28 | 1 | 2356 | 56 |
| spanish flu in england | 1.51 | 0.9 | 1673 | 65 |
| duration of spanish flu epidemic | 0.61 | 0.1 | 7825 | 95 |
| how long did the spanish flu last of 1918 | 1.03 | 0.1 | 6260 | 37 |
| how long did the spanish flu last in america | 0.34 | 0.3 | 5369 | 71 |
| how long did the spanish flu last in the usa | 1.28 | 0.7 | 2613 | 21 |
| how long did the spanish flu pandemic last | 0.12 | 1 | 5447 | 81 |
| how long did the spanish flu epidemic last | 0.69 | 0.5 | 5383 | 36 |
| how long does the spanish flu last | 1.47 | 0.7 | 9112 | 37 |
| how long spanish flu lasted | 1.79 | 0.9 | 4922 | 13 |
| was the spanish flu an epidemic | 0.34 | 1 | 3463 | 45 |
| when did the spanish flu pandemic end | 1.48 | 0.2 | 7404 | 33 |
