| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 35 | 
                                    
                                    11%
                                 | 
| 2 | NO | 227 | 
                                    
                                    71.6%
                                 | 
| Sysmiss | 55 | 
                                    
                                    17.4%
                                 |