| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not applicable | 17 | 
                                    
                                    1.6%
                                 | 
| 1 | On duty | 840 | 
                                    
                                    76.9%
                                 | 
| 2 | On call | 236 | 
                                    
                                    21.6%
                                 | 
| Sysmiss | 175 |