| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 | 
                                    
                                    0.2%
                                 | |
| 1 | 10 | 
                                    
                                    2.3%
                                 | |
| 2 | 267 | 
                                    
                                    61%
                                 | |
| 3 | 89 | 
                                    
                                    20.3%
                                 | |
| 4 | 45 | 
                                    
                                    10.3%
                                 | |
| 5 | 18 | 
                                    
                                    4.1%
                                 | |
| 6 | 3 | 
                                    
                                    0.7%
                                 | |
| 7 | 3 | 
                                    
                                    0.7%
                                 | |
| 8 | 1 | 
                                    
                                    0.2%
                                 | |
| 11 | 1 | 
                                    
                                    0.2%
                                 | |
| Sysmiss | 1513 |