| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not applicable | 206 | 
                                    
                                    84.1%
                                 | 
| 1 | On duty | 8 | 
                                    
                                    3.3%
                                 | 
| 2 | On call | 31 | 
                                    
                                    12.7%
                                 | 
| Sysmiss | 1023 |