| Value | Category | Cases | |
|---|---|---|---|
| 1 | Always | 90 | 
                                
                                1.7%
                             | 
| 2 | Often | 109 | 
                                
                                2%
                             | 
| 3 | Rarely | 279 | 
                                
                                5.2%
                             | 
| 4 | Not at all | 195 | 
                                
                                3.6%
                             | 
| 5 | 2 | 
                                
                                0%
                             | |
| 7 | Refusal | 3 | 
                                
                                0.1%
                             | 
| 9 | Not applicable | 4714 | 
                                
                                87.4%
                             | 
| Sysmiss | 2 |