| Value | Category | Cases | |
|---|---|---|---|
| 0 | 114 | 
                                
                                51.8%
                             | |
| 1 | 98 | 
                                
                                44.5%
                             | |
| 2 | 4 | 
                                
                                1.8%
                             | |
| 3 | 1 | 
                                
                                0.5%
                             | |
| 5 | 2 | 
                                
                                0.9%
                             | |
| 99 | Not applicable | 1 | 
                                
                                0.5%
                             | 
| Sysmiss | 30 |