| Value | Category | Cases | |
|---|---|---|---|
| 1 | Now | 4 | 
                                
                                2.6%
                             | 
| 2 | Later | 3 | 
                                
                                2%
                             | 
| 3 | Not at all | 0 | 
                                
                                0%
                             | 
| 5 | Missing | 0 | 
                                
                                0%
                             | 
| 7 | Refusal | 0 | 
                                
                                0%
                             | 
| 9 | Not applicable | 146 | 
                                
                                95.4%
                             |