| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 | 
                                    
                                    0%
                                 | 
| -7 | The establishment does not use water for production | 185 | 
                                    
                                    30.2%
                                 | 
| 1 | Yes | 64 | 
                                    
                                    10.5%
                                 | 
| 2 | No | 363 | 
                                    
                                    59.3%
                                 |