| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 124 | 
                                    
                                    14.3%
                                 | 
| 2 | NO | 238 | 
                                    
                                    27.5%
                                 | 
| Sysmiss | 503 | 
                                    
                                    58.2%
                                 |