| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not applicable | 185 | 
                                    
                                    56.7%
                                 | 
| 1 | On duty | 23 | 
                                    
                                    7.1%
                                 | 
| 2 | On call | 118 | 
                                    
                                    36.2%
                                 | 
| Sysmiss | 942 |