| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 272 | 
                                    
                                    90.7%
                                 | 
| 1 | Yes | 28 | 
                                    
                                    9.3%
                                 | 
| 999 | Refused/Skipped | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 1522 |