| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 29 | 
                                    
                                    0.7%
                                 | 
| 2 | Poorly | 642 | 
                                    
                                    16.4%
                                 | 
| 3 | Sometimes | 1758 | 
                                    
                                    44.8%
                                 | 
| 4 | Most times | 876 | 
                                    
                                    22.3%
                                 | 
| 5 | Always | 616 | 
                                    
                                    15.7%
                                 | 
| Sysmiss | 5 |