| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2 | 
                                    
                                    10%
                                 | |
| 2 | 4 | 
                                    
                                    20%
                                 | |
| 3 | 2 | 
                                    
                                    10%
                                 | |
| 4 | 4 | 
                                    
                                    20%
                                 | |
| 5 | 3 | 
                                    
                                    15%
                                 | |
| 6 | 2 | 
                                    
                                    10%
                                 | |
| 7 | 3 | 
                                    
                                    15%
                                 | |
| Sysmiss | 1995 |