| value | category | cases | |
|---|---|---|---|
| 0 | 0 ppm (no iodine) | 1708 |
16.2%
|
| 7 | 7 ppm | 3764 |
35.8%
|
| 15 | 15 ppm | 3138 |
29.8%
|
| 30 | 30 ppm | 1635 |
15.5%
|
| 994 | Salt not tested | 10 |
0.1%
|
| 995 | No salt | 96 |
0.9%
|
| 997 | Not dejure resident | 177 |
1.7%
|
| 999 | 117 |