| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 1292 | 
                                    
                                    87.4%
                                 | 
| 2 | SOME DIFFICULTY | 128 | 
                                    
                                    8.7%
                                 | 
| 3 | A LOT OF DIFFICULTY | 7 | 
                                    
                                    0.5%
                                 | 
| 4 | CANNOT CONTROL BEHAVIOUR AT ALL | 3 | 
                                    
                                    0.2%
                                 | 
| 9 | NO RESPONSE | 1 | 
                                    
                                    0.1%
                                 | 
| Sysmiss | 48 | 
                                    
                                    3.2%
                                 |