| Value | Category | Cases | |
|---|---|---|---|
| 0 | no | 0 | 
                                    
                                    0%
                                 | 
| 1 | yes | 0 | 
                                    
                                    0%
                                 | 
| 2 | permanent net | 502 | 
                                    
                                    100%
                                 | 
| 8 | not sure | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 5979 |