| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 | 
                                    
                                    0%
                                 | 
| 0 | Never | 525 | 
                                    
                                    43.8%
                                 | 
| 1 | Occasionally | 447 | 
                                    
                                    37.3%
                                 | 
| 2 | Frequently | 225 | 
                                    
                                    18.8%
                                 | 
| 9 | Don't know | 3 | 
                                    
                                    0.3%
                                 | 
| 98 | Refused | 0 | 
                                    
                                    0%
                                 |