| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not applicable | 580 | 
                                    
                                    62.2%
                                 | 
| 1 | On duty | 127 | 
                                    
                                    13.6%
                                 | 
| 2 | On call | 225 | 
                                    
                                    24.1%
                                 | 
| Sysmiss | 336 |