| Value | Category | Cases | |
|---|---|---|---|
| 0 | 529 | 
                                    
                                    39.5%
                                 | |
| 1 | 478 | 
                                    
                                    35.7%
                                 | |
| 2 | 235 | 
                                    
                                    17.5%
                                 | |
| 3 | 70 | 
                                    
                                    5.2%
                                 | |
| 4 | 21 | 
                                    
                                    1.6%
                                 | |
| 5 | 4 | 
                                    
                                    0.3%
                                 | |
| 6 | 1 | 
                                    
                                    0.1%
                                 | |
| 8 | 1 | 
                                    
                                    0.1%
                                 | |
| 10 | 1 | 
                                    
                                    0.1%
                                 | |
| Sysmiss | 160 |