| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 247 | 
                                    
                                    42.4%
                                 | 
| 2 | NO | 13 | 
                                    
                                    2.2%
                                 | 
| Sysmiss | 323 | 
                                    
                                    55.4%
                                 |