| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 | 
                                    
                                    0.4%
                                 | |
| 1 | 7 | 
                                    
                                    2.6%
                                 | |
| 2 | 67 | 
                                    
                                    24.6%
                                 | |
| 3 | 108 | 
                                    
                                    39.7%
                                 | |
| 4 | 53 | 
                                    
                                    19.5%
                                 | |
| 5 | 19 | 
                                    
                                    7%
                                 | |
| 6 | 12 | 
                                    
                                    4.4%
                                 | |
| 8 | 2 | 
                                    
                                    0.7%
                                 | |
| 9 | 1 | 
                                    
                                    0.4%
                                 | |
| 22 | 1 | 
                                    
                                    0.4%
                                 | |
| 35 | 1 | 
                                    
                                    0.4%
                                 | |
| Sysmiss | 104 |