| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 473 | 
                                    
                                    45.8%
                                 | 
| 2 | NO | 157 | 
                                    
                                    15.2%
                                 | 
| Sysmiss | 402 | 
                                    
                                    39%
                                 |