| Value | Category | Cases | |
|---|---|---|---|
| 0 | 30 | 
                                    
                                    7.2%
                                 | |
| 1 | 231 | 
                                    
                                    55.3%
                                 | |
| 2 | 72 | 
                                    
                                    17.2%
                                 | |
| 3 | 22 | 
                                    
                                    5.3%
                                 | |
| 4 | 6 | 
                                    
                                    1.4%
                                 | |
| 5 | 47 | 
                                    
                                    11.2%
                                 | |
| 6 | 8 | 
                                    
                                    1.9%
                                 | |
| 10 | 2 | 
                                    
                                    0.5%
                                 | |
| Sysmiss | 54566 |