| Value | Category | Cases | |
|---|---|---|---|
| 1 | Often | 2 | 
                                    
                                    0.2%
                                 | 
| 2 | Sometimes | 18 | 
                                    
                                    2.2%
                                 | 
| 3 | Rarely | 14 | 
                                    
                                    1.7%
                                 | 
| 4 | Never | 790 | 
                                    
                                    95.9%
                                 | 
| 5 | Refused to answer | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 111 |