| Value | Category | Cases | |
|---|---|---|---|
| -5 | DE,SE:Inapplicable ; HT: Dropped out survey | 0 | 
                                    
                                    0%
                                 | 
| -4 | Not asked in survey | 0 | 
                                    
                                    0%
                                 | 
| -3 | Not applicable | 0 | 
                                    
                                    0%
                                 | 
| -2 | No answer | 0 | 
                                    
                                    0%
                                 | 
| -1 | Don't know | 0 | 
                                    
                                    0%
                                 | 
| 1 | Often | 116 | 
                                    
                                    9.7%
                                 | 
| 2 | Sometimes | 289 | 
                                    
                                    24.1%
                                 | 
| 3 | Rarely | 363 | 
                                    
                                    30.3%
                                 | 
| 4 | Never | 431 | 
                                    
                                    35.9%
                                 | 
| Sysmiss | 1 |