| Value | Category | Cases | |
|---|---|---|---|
| 1 | 149 | 
                                    
                                    61.6%
                                 | |
| 2 | 59 | 
                                    
                                    24.4%
                                 | |
| 3 | 18 | 
                                    
                                    7.4%
                                 | |
| 5 | 8 | 
                                    
                                    3.3%
                                 | |
| 8 | 8 | 
                                    
                                    3.3%
                                 | |
| Sysmiss | 1991 |