| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not applicable | 164 | 
                                    
                                    44.1%
                                 | 
| 1 | On duty | 172 | 
                                    
                                    46.2%
                                 | 
| 2 | On call | 36 | 
                                    
                                    9.7%
                                 | 
| Sysmiss | 896 |