| Value | Category | Cases | |
|---|---|---|---|
| 1 | SI | 1873 | 
                                    
                                    45.4%
                                 | 
| 2 | NO | 399 | 
                                    
                                    9.7%
                                 | 
| Sysmiss | 1850 | 
                                    
                                    44.9%
                                 |