| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not applicable | 200 | 
                                    
                                    76.3%
                                 | 
| 1 | On duty | 31 | 
                                    
                                    11.8%
                                 | 
| 2 | On call | 31 | 
                                    
                                    11.8%
                                 | 
| Sysmiss | 1006 |