| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 11 | 
                                    
                                    0.7%
                                 | 
| 2 | NO | 374 | 
                                    
                                    24.6%
                                 | 
| Sysmiss | 1136 | 
                                    
                                    74.7%
                                 |