| Value | Category | Cases | |
|---|---|---|---|
| -9 | 6 | 
                                    
                                    4.9%
                                 | |
| 0 | 3 | 
                                    
                                    2.5%
                                 | |
| 5 | 2 | 
                                    
                                    1.6%
                                 | |
| 10 | 8 | 
                                    
                                    6.6%
                                 | |
| 15 | 12 | 
                                    
                                    9.8%
                                 | |
| 20 | 4 | 
                                    
                                    3.3%
                                 | |
| 30 | 83 | 
                                    
                                    68%
                                 | |
| 45 | 3 | 
                                    
                                    2.5%
                                 | |
| 50 | 1 | 
                                    
                                    0.8%
                                 | |
| Sysmiss | 1095 |