| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not applicable | 138 | 
                                    
                                    20.5%
                                 | 
| 1 | On duty | 463 | 
                                    
                                    68.7%
                                 | 
| 2 | On call | 73 | 
                                    
                                    10.8%
                                 | 
| Sysmiss | 594 |