| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 7019 | 
                                    
                                    40.1%
                                 | 
| 2 | Sometimes | 3743 | 
                                    
                                    21.4%
                                 | 
| 3 | Always | 6760 | 
                                    
                                    38.6%
                                 | 
| 7 | N/A | 400 | |
| 8 | Invalid | 4 | |
| 9 | Missing | 213 |