| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 14 | 
                                    
                                    3.5%
                                 | 
| 2 | NO | 312 | 
                                    
                                    77.8%
                                 | 
| Sysmiss | 75 | 
                                    
                                    18.7%
                                 |