| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 5 |
20.8%
|
| -7 | The establishment does not use water for production | 5 |
20.8%
|
| 1 | Yes | 8 |
33.3%
|
| 2 | No | 6 |
25%
|
| Sysmiss | 127 |