| Value | Category | Cases | |
|---|---|---|---|
| 88 | 242 | 
                                    
                                    22.6%
                                 | |
| 89 | 765 | 
                                    
                                    71.4%
                                 | |
| 90 | 58 | 
                                    
                                    5.4%
                                 | |
| 99 | Not reported | 7 | 
                                    
                                    0.7%
                                 | 
| Sysmiss | 656 |