| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 240 | 
                                    
                                    29.6%
                                 | 
| 2 | NO | 87 | 
                                    
                                    10.7%
                                 | 
| Sysmiss | 485 | 
                                    
                                    59.7%
                                 |