| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| began public health and sanitation systems | 0.73 | 1 | 1496 | 37 | 42 |
| began | 0.03 | 0.7 | 2163 | 14 | 5 |
| public | 0.37 | 0.6 | 3787 | 98 | 6 |
| health | 0.84 | 0.2 | 4787 | 69 | 6 |
| and | 0.77 | 0.2 | 2778 | 20 | 3 |
| sanitation | 1.31 | 0.5 | 9620 | 3 | 10 |
| systems | 0.18 | 0.7 | 4418 | 58 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| began public health and sanitation systems | 1.55 | 1 | 1521 | 28 |
| who began public health and sanitation system | 1.78 | 0.1 | 6208 | 43 |
| public health and sanitation systems | 0.41 | 0.7 | 7824 | 63 |
| history of public sanitation | 0.67 | 0.5 | 1485 | 52 |
| public health and sanitation | 0.82 | 1 | 6963 | 14 |
| the development of sanitation systems | 1.41 | 0.6 | 1723 | 97 |
| history of the public health system | 0.69 | 0.7 | 3960 | 18 |
| when was sanitation developed | 0.88 | 0.9 | 8413 | 76 |
| poor sanitation and public health | 1.54 | 0.9 | 9909 | 65 |
| public health and sanitation in which list | 1.18 | 1 | 500 | 75 |
| public health service history | 0.73 | 0.6 | 9309 | 15 |
| history of the us public health service | 0.23 | 1 | 1792 | 45 |
| how did public health begin | 1.59 | 0.1 | 6707 | 53 |
| health and sanitation background | 0.07 | 0.1 | 7065 | 58 |
| who invented sanitation systems | 0.14 | 0.8 | 4905 | 58 |
| history of public health | 0.53 | 0.5 | 8689 | 61 |
| when was sanitation invented | 1.41 | 0.9 | 9526 | 24 |
| when was public health introduced | 0.59 | 0.9 | 4792 | 95 |
| when did public health start | 0.22 | 0.2 | 8459 | 71 |
| when was public health established | 1.96 | 0.8 | 392 | 60 |
| information about the sanitation | 0.16 | 0.4 | 4610 | 8 |
