| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | Never | 619 | 
                                    
                                    51.6%
                                 | 
| 1 | Sometimes | 242 | 
                                    
                                    20.2%
                                 | 
| 2 | Often | 140 | 
                                    
                                    11.7%
                                 | 
| 3 | Always | 102 | 
                                    
                                    8.5%
                                 | 
| 9 | Don't know | 97 | 
                                    
                                    8.1%
                                 | 
| 98 | Refused | 0 | 
                                    
                                    0%
                                 |