| Value | Category | Cases | |
|---|---|---|---|
| 15 | 1 | 
                                    
                                    0.1%
                                 | |
| 16 | 1 | 
                                    
                                    0.1%
                                 | |
| 17 | 15 | 
                                    
                                    1.4%
                                 | |
| 18 | 91 | 
                                    
                                    8.8%
                                 | |
| 19 | 172 | 
                                    
                                    16.6%
                                 | |
| 20 | 126 | 
                                    
                                    12.1%
                                 | |
| 21 | 53 | 
                                    
                                    5.1%
                                 | |
| 22 | 27 | 
                                    
                                    2.6%
                                 | |
| 23 | 4 | 
                                    
                                    0.4%
                                 | |
| 24 | 3 | 
                                    
                                    0.3%
                                 | |
| 25 | 3 | 
                                    
                                    0.3%
                                 | |
| 27 | 1 | 
                                    
                                    0.1%
                                 | |
| 29 | 1 | 
                                    
                                    0.1%
                                 | |
| 30 | 1 | 
                                    
                                    0.1%
                                 | |
| 34 | 1 | 
                                    
                                    0.1%
                                 | |
| 42 | 1 | 
                                    
                                    0.1%
                                 | |
| 99 | nr | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 537 | 
                                    
                                    51.7%
                                 |