| Value | Category | Cases | |
|---|---|---|---|
| 0 | 220 | 
                                    
                                    80.9%
                                 | |
| 1 | 8 | 
                                    
                                    2.9%
                                 | |
| 2 | 14 | 
                                    
                                    5.1%
                                 | |
| 3 | 30 | 
                                    
                                    11%
                                 | |
| Sysmiss | 9203 |