| Value | Category | Cases | |
|---|---|---|---|
| 0 | 4 | 
                                    
                                    6.5%
                                 | |
| 1 | 2 | 
                                    
                                    3.2%
                                 | |
| 2 | 1 | 
                                    
                                    1.6%
                                 | |
| 3 | 1 | 
                                    
                                    1.6%
                                 | |
| 4 | 3 | 
                                    
                                    4.8%
                                 | |
| 5 | 2 | 
                                    
                                    3.2%
                                 | |
| 6 | 6 | 
                                    
                                    9.7%
                                 | |
| 7 | 5 | 
                                    
                                    8.1%
                                 | |
| 8 | 12 | 
                                    
                                    19.4%
                                 | |
| 9 | 13 | 
                                    
                                    21%
                                 | |
| 10 | 4 | 
                                    
                                    6.5%
                                 | |
| 11 | 6 | 
                                    
                                    9.7%
                                 | |
| 12 | 3 | 
                                    
                                    4.8%
                                 | |
| Sysmiss | 281 |