| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 2763 | 
                                
                                57.2%
                             | 
| 1 | Rarely | 920 | 
                                
                                19%
                             | 
| 2 | Sometimes | 587 | 
                                
                                12.1%
                             | 
| 3 | Often | 563 | 
                                
                                11.6%
                             | 
| Sysmiss | 28 |