| Value | Category | Cases | |
|---|---|---|---|
| 0 | 12 | 
                                    
                                    0.6%
                                 | |
| 2 | 2 | 
                                    
                                    0.1%
                                 | |
| 3 | 11 | 
                                    
                                    0.6%
                                 | |
| 4 | 9 | 
                                    
                                    0.5%
                                 | |
| 5 | 1 | 
                                    
                                    0.1%
                                 | |
| 6 | 20 | 
                                    
                                    1%
                                 | |
| 7 | 3 | 
                                    
                                    0.2%
                                 | |
| 8 | 23 | 
                                    
                                    1.2%
                                 | |
| 9 | 34 | 
                                    
                                    1.7%
                                 | |
| 10 | 78 | 
                                    
                                    4%
                                 | |
| 11 | 50 | 
                                    
                                    2.6%
                                 | |
| 12 | 156 | 
                                    
                                    8%
                                 | |
| 13 | 61 | 
                                    
                                    3.1%
                                 | |
| 14 | 246 | 
                                    
                                    12.7%
                                 | |
| 15 | 76 | 
                                    
                                    3.9%
                                 | |
| 16 | 374 | 
                                    
                                    19.2%
                                 | |
| 17 | 84 | 
                                    
                                    4.3%
                                 | |
| 18 | 417 | 
                                    
                                    21.5%
                                 | |
| 19 | 35 | 
                                    
                                    1.8%
                                 | |
| 20 | 251 | 
                                    
                                    12.9%
                                 | |
| Sysmiss | 24 |