| Value | Category | Cases | |
|---|---|---|---|
| -8 | Refused | 0 | 
                                    
                                    0%
                                 | 
| -7 | does not apply code | 269 | 
                                    
                                    99.6%
                                 | 
| 1 | Male | 1 | 
                                    
                                    0.4%
                                 | 
| 2 | Female | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 685 |