| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not applicable | 190 | 
                                    
                                    66.7%
                                 | 
| 1 | On duty | 36 | 
                                    
                                    12.6%
                                 | 
| 2 | On call | 59 | 
                                    
                                    20.7%
                                 | 
| Sysmiss | 983 |