| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very frequently | 1093 | 
                                    
                                    4.7%
                                 | 
| 2 | Frequently | 2775 | 
                                    
                                    11.8%
                                 | 
| 3 | A little frequently | 8385 | 
                                    
                                    35.7%
                                 | 
| 4 | Not frequently | 11205 | 
                                    
                                    47.8%
                                 | 
| Sysmiss | 1486 |