| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 ppm (no iodine) | 129 |
1.7%
|
| 7 | 7 ppm | 58 |
0.8%
|
| 15 | 15 ppm | 200 |
2.7%
|
| 30 | 30 ppm | 6795 |
91.4%
|
| 994 | Salt not tested | 12 |
0.2%
|
| 995 | No salt | 76 |
1%
|
| 997 | Not dejure resident | 168 |
2.3%
|
| 999 | Missing | 182 | |
| Sysmiss | 365 |