| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, fully | 375 | 
                                    
                                    5.5%
                                 | 
| 2 | Yes, partially | 1905 | 
                                    
                                    27.9%
                                 | 
| 3 | I don’t know at all | 4540 | 
                                    
                                    66.5%
                                 | 
| Sysmiss | 3 |