| Value | Category | Cases | |
|---|---|---|---|
| 0 | 356 | 
                                    
                                    89.4%
                                 | |
| 15 | 2 | 
                                    
                                    0.5%
                                 | |
| 20 | 2 | 
                                    
                                    0.5%
                                 | |
| 30 | 25 | 
                                    
                                    6.3%
                                 | |
| 40 | 2 | 
                                    
                                    0.5%
                                 | |
| 45 | 10 | 
                                    
                                    2.5%
                                 | |
| 50 | 1 | 
                                    
                                    0.3%
                                 | |
| Sysmiss | 2 |