| Value | Category | Cases | |
|---|---|---|---|
| 0 | 50 | 
                                    
                                    27.5%
                                 | |
| 1 | 87 | 
                                    
                                    47.8%
                                 | |
| 2 | 36 | 
                                    
                                    19.8%
                                 | |
| 3 | 8 | 
                                    
                                    4.4%
                                 | |
| 4 | 1 | 
                                    
                                    0.5%
                                 | |
| Sysmiss | 3352 |