| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 236 | 
                                    
                                    89.1%
                                 | 
| 2 | NO | 12 | 
                                    
                                    4.5%
                                 | 
| Sysmiss | 17 | 
                                    
                                    6.4%
                                 |