| Value | Category | Cases | |
|---|---|---|---|
| 5 | 2 | 
                                    
                                    0.1%
                                 | |
| 6 | 2 | 
                                    
                                    0.1%
                                 | |
| 7 | 30 | 
                                    
                                    1.3%
                                 | |
| 8 | 134 | 
                                    
                                    5.7%
                                 | |
| 9 | 296 | 
                                    
                                    12.7%
                                 | |
| 10 | 435 | 
                                    
                                    18.6%
                                 | |
| 11 | 358 | 
                                    
                                    15.3%
                                 | |
| 12 | 278 | 
                                    
                                    11.9%
                                 | |
| 13 | 227 | 
                                    
                                    9.7%
                                 | |
| 14 | 222 | 
                                    
                                    9.5%
                                 | |
| 15 | 199 | 
                                    
                                    8.5%
                                 | |
| 16 | 119 | 
                                    
                                    5.1%
                                 | |
| 17 | 29 | 
                                    
                                    1.2%
                                 | |
| 18 | 6 | 
                                    
                                    0.3%
                                 | |
| 19 | 1 | 
                                    
                                    0%
                                 | |
| Sysmiss | 840 |