| Value | Category | Cases | |
|---|---|---|---|
| 0 | cannot read at all | 3142 | 
                                    
                                    21.2%
                                 | 
| 1 | able to read only parts of sentence | 1735 | 
                                    
                                    11.7%
                                 | 
| 2 | able to read whole sentence | 9620 | 
                                    
                                    65%
                                 | 
| 3 | no card with required language | 313 | 
                                    
                                    2.1%
                                 | 
| Sysmiss | 136 |