| Value | Category | Cases | |
|---|---|---|---|
| 1 | BLANK WATER SAMPLE AVAILABLE | 344 | 
                                    
                                    3.4%
                                 | 
| 1 | BLANK WATER SAMPLE AVAILABLE | 20 | 
                                    
                                    0.2%
                                 | 
| 1 | BLANK WATER SAMPLE AVAILABLE | 1 | 
                                    
                                    0%
                                 | 
| Sysmiss | 9715 | 
                                    
                                    96.4%
                                 |