| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not applicable | 258 | 
                                    
                                    45.3%
                                 | 
| 1 | On duty | 106 | 
                                    
                                    18.6%
                                 | 
| 2 | On call | 206 | 
                                    
                                    36.1%
                                 | 
| Sysmiss | 698 |