| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 | 
                                    
                                    2%
                                 | 
| -8 | Refusal (spontaneous) | 0 | 
                                    
                                    0%
                                 | 
| 1 | Yes | 40 | 
                                    
                                    39.6%
                                 | 
| 2 | No | 59 | 
                                    
                                    58.4%
                                 | 
| Sysmiss | 262 |