| Value | Category | Cases | |
|---|---|---|---|
| -9 | 3821 | 
                                
                                88%
                             | |
| 1 | Minutes | 465 | 
                                
                                10.7%
                             | 
| 2 | Hours | 10 | 
                                
                                0.2%
                             | 
| 3 | Days | 0 | 
                                
                                0%
                             | 
| 5 | Missing | 3 | 
                                
                                0.1%
                             | 
| 7 | Refusal | 0 | 
                                
                                0%
                             | 
| 9 | Not applicable | 41 | 
                                
                                0.9%
                             |