| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 | 
                                    
                                    1.7%
                                 | |
| 2 | 1 | 
                                    
                                    1.7%
                                 | |
| 3 | 19 | 
                                    
                                    32.8%
                                 | |
| 4 | 16 | 
                                    
                                    27.6%
                                 | |
| 5 | 11 | 
                                    
                                    19%
                                 | |
| 6 | 6 | 
                                    
                                    10.3%
                                 | |
| 7 | 2 | 
                                    
                                    3.4%
                                 | |
| 8 | 1 | 
                                    
                                    1.7%
                                 | |
| 9 | 1 | 
                                    
                                    1.7%
                                 | |
| Sysmiss | 1893 |