| Value | Category | Cases | |
|---|---|---|---|
| 0 | 105 | 
                                
                                46.7%
                             | |
| 1 | 116 | 
                                
                                51.6%
                             | |
| 2 | 3 | 
                                
                                1.3%
                             | |
| 3 | 1 | 
                                
                                0.4%
                             | |
| 99 | Not applicable | 0 | 
                                
                                0%
                             | 
| Sysmiss | 25 |