| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 137 | 
                                    
                                    34.4%
                                 | 
| 2 | NO | 122 | 
                                    
                                    30.7%
                                 | 
| Sysmiss | 139 | 
                                    
                                    34.9%
                                 |