| value | category | cases | |
|---|---|---|---|
| 0 | 0 ppm (no iodine) | 362 |
15.8%
|
| 7 | 7 ppm | 808 |
35.2%
|
| 15 | 15 ppm | 715 |
31.1%
|
| 30 | 30 ppm | 376 |
16.4%
|
| 994 | Salt not tested | 4 |
0.2%
|
| 995 | No salt | 26 |
1.1%
|
| 997 | Not dejure resident | 6 |
0.3%
|
| 999 | 43 |