| Value | Category | Cases | |
|---|---|---|---|
| 0 | 357 | 
                                    
                                    83.6%
                                 | |
| 1 | 49 | 
                                    
                                    11.5%
                                 | |
| 2 | 12 | 
                                    
                                    2.8%
                                 | |
| 3 | 4 | 
                                    
                                    0.9%
                                 | |
| 4 | 3 | 
                                    
                                    0.7%
                                 | |
| 5 | 1 | 
                                    
                                    0.2%
                                 | |
| 6 | 1 | 
                                    
                                    0.2%
                                 | |
| Sysmiss | 5 |