| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very often | 915 | 
                                    
                                    22.7%
                                 | 
| 2 | Often | 2238 | 
                                    
                                    55.6%
                                 | 
| 3 | Occasionally | 795 | 
                                    
                                    19.8%
                                 | 
| 4 | Rarely | 61 | 
                                    
                                    1.5%
                                 | 
| 5 | Never | 4 | 
                                    
                                    0.1%
                                 | 
| 998 | Don't know | 10 | 
                                    
                                    0.2%
                                 | 
| 999 | Refuse to answer | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 4 |