| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 25 |
2.7%
|
| -7 | The establishment does not use water for production | 57 |
6.2%
|
| 1 | Yes | 40 |
4.3%
|
| 2 | No | 799 |
86.8%
|
| Sysmiss | 525 |