| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | The establishment does not use water for production | 18 |
2.3%
|
| 1 | Yes | 22 |
2.8%
|
| 2 | No | 735 |
94.8%
|
| Sysmiss | 1294 |