| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Yes | 13 | 
                                    
                                    50%
                                 | 
| 3 | 3. No | 13 | 
                                    
                                    50%
                                 | 
| 9 | 9. Missing | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 313 |