| Value | Category | Cases | |
|---|---|---|---|
| 1 | Always or almost always | 21841 | 
                                    
                                    7%
                                 | 
| 2 | Often | 56808 | 
                                    
                                    18.1%
                                 | 
| 3 | Sometimes | 127348 | 
                                    
                                    40.6%
                                 | 
| 4 | Never or rarely | 107498 | 
                                    
                                    34.3%
                                 | 
| 7 | N/A | 164774 | |
| 8 | Invalid | 357 | |
| 9 | Missing | 6864 |