| Value | Category | Cases | |
|---|---|---|---|
| 1 | Now | 27 | 
                                
                                1%
                             | 
| 2 | Later | 70 | 
                                
                                2.5%
                             | 
| 3 | Not at all | 13 | 
                                
                                0.5%
                             | 
| 5 | Missing | 0 | 
                                
                                0%
                             | 
| 7 | Refusal | 0 | 
                                
                                0%
                             | 
| 9 | Not applicable | 2666 | 
                                
                                96%
                             |