| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
0.8%
|
| -7 | The establishment does not use water for production | 34 |
13.3%
|
| 1 | Yes | 5 |
2%
|
| 2 | No | 214 |
83.9%
|
| Sysmiss | 346 |