| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very frequently | 312 | 
                                    
                                    1.3%
                                 | 
| 2 | Frequently | 1395 | 
                                    
                                    5.9%
                                 | 
| 3 | A little frequently | 5871 | 
                                    
                                    25%
                                 | 
| 4 | Not frequently | 15880 | 
                                    
                                    67.7%
                                 | 
| Sysmiss | 1486 |