| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 442 | 
                                    
                                    82.9%
                                 | 
| 2 | NO | 76 | 
                                    
                                    14.3%
                                 | 
| Sysmiss | 15 | 
                                    
                                    2.8%
                                 |