| Value | Category | Cases | |
|---|---|---|---|
| 5 | 3 | 
                                    
                                    0.1%
                                 | |
| 6 | 17 | 
                                    
                                    0.5%
                                 | |
| 7 | 64 | 
                                    
                                    1.9%
                                 | |
| 8 | 161 | 
                                    
                                    4.8%
                                 | |
| 9 | 338 | 
                                    
                                    10%
                                 | |
| 10 | 456 | 
                                    
                                    13.5%
                                 | |
| 11 | 526 | 
                                    
                                    15.5%
                                 | |
| 12 | 445 | 
                                    
                                    13.2%
                                 | |
| 13 | 402 | 
                                    
                                    11.9%
                                 | |
| 14 | 388 | 
                                    
                                    11.5%
                                 | |
| 15 | 300 | 
                                    
                                    8.9%
                                 | |
| 16 | 217 | 
                                    
                                    6.4%
                                 | |
| 17 | 54 | 
                                    
                                    1.6%
                                 | |
| 18 | 9 | 
                                    
                                    0.3%
                                 | |
| 19 | 2 | 
                                    
                                    0.1%
                                 | |
| 20 | 2 | 
                                    
                                    0.1%
                                 | |
| Sysmiss | 320 |