| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not applicable | 184 | 
                                    
                                    32.3%
                                 | 
| 1 | On duty | 263 | 
                                    
                                    46.1%
                                 | 
| 2 | On call | 123 | 
                                    
                                    21.6%
                                 | 
| Sysmiss | 698 |